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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2016	Apr. 22, 2016
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Entity Registrant Name	MRC GLOBAL INC.
Entity Central Index Key	0001439095
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Common Stock [Member]
Entity Common Stock, Shares Outstanding		98,650,627
Restricted Stock [Member]
Entity Common Stock, Shares Outstanding		585,492

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash	$ 121	$ 69
Accounts receivable, net	470	533
Inventories, net	720	781
Other current assets	35	22
Total current assets	1,346	1,405
Other assets	22	22
Property, plant and equipment, net	134	127
Intangible assets:
Goodwill, net	484	484
Other intangible assets, net	448	459
Total assets	2,434	2,497
Current liabilities:
Trade accounts payable	309	327
Accrued expenses and other current liabilities	100	110
Current portion of long term debt	8	8
Total current liabilities	417	445
Long-term obligations:
Long-term debt, net	510	511
Deferred income taxes	208	208
Other liabilities	22	22
Commitments and contingencies
6.5% Series A Convertible Perpetual Preferred Stock, $0.01 par value; authorized 363,000 shares; 363,000 shares issued and outstanding	355	355
Stockholders' equity:
Common stock, $0.01 par value per share: 500 million shares authorized, 102,345,890 and 102,202,599 issued, respectively	1	1
Additional paid-in capital	1,668	1,666
Retained deficit	(481)	(467)
Less: Treasury stock at cost: 3,695,263 and 816,389 shares, respectively	(50)	(12)
Accumulated other comprehensive loss	(216)	(232)
Total stockholders' equity	922	956
Total liabilities and stockholders' equity	$ 2,434	$ 2,497

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, dividend rate	6.50%	6.50%
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	363,000	363,000
Preferred stock, shares issued	363,000	363,000
Preferred stock, shares outstanding	363,000	363,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	102,345,890	102,202,599
Treasury stock, shares	3,695,263	816,389

Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidated Statements of Operations [Abstract]
Sales	$ 783	$ 1,292
Cost of sales	650	1,072
Gross profit	133	220
Selling, general and administrative expenses	137	159
Operating (loss) income	(4)	61
Other expense:
Interest expense	(8)	(15)
Other, net	(1)	(4)
(Loss) income before income taxes	(13)	42
Income tax (benefit) expense	(5)	13
Net (loss) income	(8)	29
Series A preferred stock dividends	6
Net (loss) income attributable to common stockholders	$ (14)	$ 29
Basic (loss) earnings per common share	$ (0.14)	$ 0.28
Diluted (loss) earnings per common share	$ (0.14)	$ 0.28
Weighted-average common shares, basic	100.7	102.1
Weighted-average common shares, diluted	100.7	102.2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net (loss) income	$ (8)	$ 29
Other comprehensive income (loss)
Foreign currency translation adjustments	16	(53)
Comprehensive income (loss)	$ 8	$ (24)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities
Net (loss) income	$ (8)	$ 29
Adjustments to reconcile net (loss) income to net cash provided by operations:
Depreciation and amortization	5	5
Amortization of intangibles	12	16
Equity-based compensation expense	3	2
Deferred income tax benefit		(8)
Decrease in LIFO reserve	(3)
Provision for uncollectible accounts	1	1
Foreign currency losses	1	4
Other non-cash items	2	3
Changes in operating assets and liabilities:
Accounts receivable	67	103
Inventories	24	(9)
Other current assets	(6)	(4)
Income taxes payable	(5)	11
Accounts payable	(22)	(6)
Accrued expenses and other current liabilities	(13)	(32)
Net cash provided by operations	58	115
Investing activities
Purchases of property, plant and equipment	(10)	(4)
Proceeds from the disposition of non-core product line	48
Other investing activities		(3)
Net cash provided by (used in) investing activities	38	(7)
Financing activities
Payments on revolving credit facilities	(23)	(321)
Proceeds from revolving credit facilities	23	243
Payments on long term obligations	(2)	(2)
Purchases of common stock	(38)
Dividends paid on preferred stock	(6)
Net cash used in financing activities	(46)	(80)
Increase in cash	50	28
Effect of foreign exchange rate on cash	2	(4)
Cash -- beginning of period	69	25
Cash -- end of period	121	49
Supplemental disclosures of cash flow information:
Cash paid for interest	8	14
Cash paid for income taxes	$ 1	$ 10

Background and Basis of Presentation	3 Months Ended
Background and Basis of Presentation	Mar. 31, 2016
Background and Basis of Presentation [Abstract]
Background and Basis of Presentation	NOTE 1 – BACKGROUND AND BASIS OF PRESENTATION Business Operations: MRC Global Inc. is a holding company headquartered in Houston, Texas. Our wholly owned subsidiaries are global distributors of pipe, valves, fittings (“PVF”) and related products and services across each of the upstream (exploration, production and extraction of underground oil and gas), midstream (gathering and transmission of oil and gas, gas utilities, and the storage and distribution of oil and gas) and downstream (crude oil refining and petrochemical processing) sectors. We have branches in principal industrial, hydrocarbon producing and refining areas throughout the United States, Canada, Europe, Asia, Australasia, the Middle East and Caspian. Our products are obtained from a broad range of suppliers. Basis of Presentation: We have prepared our unaudited condensed consolidated financial statements in accordance with Rule 10-01 of Regulation S-X for interim financial statements. These statements do not include all information and footnotes that generally accepted accounting principles require for complete annual financial statements. However, the information in these statements reflects all normal recurring adjustments which are, in our opinion, necessary for a fair presentation of the results for the interim periods. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results that will be realized for the fiscal year ending December 31, 2016. We have derived our condensed consolidated balance sheet as of December 31, 2015 from the audited consolidated financial statements for the year ended December 31, 2015. You should read these condensed consolidated financial statements in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2015. The consolidated financial statements include the accounts of MRC Global Inc. and its wholly owned and majority owned subsidiaries (collectively referred to as the “Company” or by such terms as “we,” “our” or “us”). All material intercompany balances and transactions have been eliminated in consolidation. Reclassifications: Certain prior-period amounts have been reclassified to conform to the current year presentation, which includes the adoption of Accounting Standards Update (“ASU”) 2015-03 Interest-Imputation of Interest (Subtopic 855-30): Simplifying the Presentation of Debt Issuance Costs. Recent Accounting Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 provides comprehensive guidance on the recognition of revenue from customers arising from the transfer of goods and services. The ASU also provides guidance on accounting for certain contract costs and requires new disclosures. The FASB voted to defer the effective date of ASU 2014-09 by one year to annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. We are currently evaluating the effect of the adoption of ASU 2014-09 on our consolidated financial statements and the implementation approach to be used. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. ASU 2015-11 provides guidance on simplifying the measurement of inventory. The current standard is to measure inventory at lower of cost or market; where market could be replacement cost, net realizable value or net realizable value less an approximately normal profit margin. ASU 2015-11 updates this guidance to measure inventory at the lower of cost or net realizable value; where net realizable value is considered to be the estimated selling price in the ordinary course of business, less reasonably predictable cost of completion, disposal and transportation. We expect to adopt this guidance in 2016. This amendment is not expected to have a material impact on the Company's financial position, results of operation or cash flows. In February 2016, the FASB issued ASU 2016-02, Leases, which will replace the existing guidance in ASC 870, Leases. This ASU requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases. Both finance leases and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability. For finance leases, the lessee would recognize interest expense and amortization of the right-of-use asset, and for operating leases, the lessee would recognize a straight-line total lease expense. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2018. We are beginning to evaluate the effect of the adoption of ASU 2016-02 on our consolidated financial results.

Inventories

3 Months Ended

Mar. 31, 2016

Inventories [Abstract]

Inventories

NOTE 2 – INVENTORIES

The composition of our inventory is as follows (in millions):


	March 31,	December 31,
	2016	2015
Finished goods inventory at average cost:
Energy carbon steel tubular products	$ 176	$ 253
Valves, fittings, flanges and all other products	653	647
	829	900
Less: Excess of average cost over LIFO cost (LIFO reserve)	(78)	(89)
Less: Other inventory reserves	(31)	(30)
	$ 720	$ 781

Our inventory quantities are expected to be reduced for the year, resulting in a liquidation of a last-in, first out (“LIFO”) inventory layer that was carried at a lower cost prevailing from a prior year, as compared with current costs in the current year (a “LIFO decrement”). A LIFO decrement results in the erosion of layers created in earlier years, and, therefore, a LIFO layer is not created for years that have decrements. For the three months ended March 31, 2016 and 2015, the effect of this LIFO decrement decreased cost of sales by approximately $1 million and $0 million, respectively.

Long-Term Debt

3 Months Ended

Mar. 31, 2016

Long-Term Debt [Abstract]

Long-Term Debt

NOTE 3 – LONG-TERM DEBT

The components of our long-term debt are as follows (in millions):


	March 31,	December 31,
	2016	2015
Senior Secured Term Loan B, net of discount and issuance costs of $6 and $7, respectively	$ 518	$ 519
Global ABL Facility	-	-
	518	519
Less: Current portion	8	8
	$ 510	$ 511

Senior Secured Term Loan B: We have a seven year Senior Secured Term Loan B (the “Term Loan”) with an original principal amount of $794 million which amortizes in equal quarterly installments of 1% per year with the balance payable in November 2019 when the facility matures. Subject to securing additional lender commitments, the Term Loan allows for incremental increases in facility size up to an aggregate of $200 million, plus an additional amount such that the Company’s senior secured leverage ratio (as defined under the Term Loan) would not exceed 3.50 to 1.00. MRC Global (US) Inc. is the borrower under this facility, which is guaranteed by MRC Global Inc. as well as all of its wholly owned U.S. subsidiaries. In addition, it is secured by a second lien on the assets securing our Global ABL Facility (which includes accounts receivable, inventory and related assets) and a first lien on substantially all of the other assets of MRC Global Inc. and those of its U.S. subsidiaries, as well as a pledge of all of the capital stock of our domestic subsidiaries and 65% of the capital stock of first tier, non-U.S. subsidiaries. In certain circumstances, we are required to repay the Term Loan with certain asset sales and insurance proceeds, certain debt proceeds and 50% of excess cash flow (reducing to 25% if our senior secured leverage ratio is no more than 2.75 to 1.00 and 0% if our senior secured leverage ratio is no more than 2.50 to 1.00). In addition, the Term Loan contains a number of customary restrictive covenants.

The interest rate for the Term Loan, including the amortization of original issue discount and debt issuance costs, was 5.16% as of March 31, 2016 and 4.98% at December 31, 2015.

Global ABL Facility: We have a $1.05 billion multi-currency global asset-based revolving credit facility (the “Global ABL Facility”) that matures in July 2019. This facility is comprised of $977 million in revolver commitments in the United States, $30 million in Norway, $20 million in Canada, $5 million in the United Kingdom, $10 million in Australia, $4 million in the Netherlands and $4 million in Belgium. It contains an accordion feature that allows us to increase the principal amount of the facility by up to $300 million, subject to securing additional lender commitments.

MRC Global Inc. and each of its current and future wholly owned material U.S. subsidiaries guarantee the obligations of our borrower subsidiaries under the Global ABL Facility. Additionally, each of our non-U.S. borrower subsidiaries guarantees the obligations of our other non-U.S. borrower subsidiaries under the Global ABL Facility. Outstanding obligations are generally secured by a first priority security interest in accounts receivable, inventory and related assets.

Excess Availability, as defined under our Global ABL Facility, was $587 million as of March 31, 2016.

Debt Issuance Costs: In the first quarter of 2016, we adopted ASU No. 2015-03 Interest-Imputation of Interest (Subtopic 855-30): Simplifying the Presentation of Debt Issuance Costs. This ASU requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability consistent with debt discounts. As a result of the adoption, we have reclassified debt issuance costs associated with our Term Loan of $4 million and $5 million as of March 31, 2016 and December 31, 2015, respectively, from other assets to long term debt in our balance sheet. Accordingly, long term debt reported as $524 million at December 31, 2015 has been revised to $519 million. Debt issuance costs associated with our Global ABL Facility will continue to be presented in other assets. These amounts were $8 million as of March 31, 2016 and December 31, 2015, respectively.

Disposition Of Non-Core Product Line	3 Months Ended
Disposition Of Non-Core Product Line	Mar. 31, 2016
Disposition Of Non-Core Product Line [Abstract]
Disposition Of Non-Core Product Line	NOTE 4 – DISPOSITION OF NON-CORE PRODUCT LINE In February 2016, we completed the disposition of our U.S. oil country tubular goods (“OCTG”) product line for $48 million. As a result of this transaction, we incurred a loss of $5 million that was reflected in our fourth quarter 2015 results. Net of reserves, including LIFO and an adjustment to write the inventory down to its net realizable value, the carrying value of the U.S. OCTG inventories as of December 31, 2015 was $50 million.

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

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+ Details

Redeemable Preferred Stock	3 Months Ended
Redeemable Preferred Stock	Mar. 31, 2016
Redeemable Preferred Stock [Abstract]
Redeemable Preferred Stock	NOTE 5 – REDEEMABLE PREFERRED STOCK Preferred Stock Issuance In June 2015, we issued 363,000 shares of Series A Convertible Perpetual Preferred Stock (the “Preferred Stock”) and received gross proceeds of $363 million. The Preferred Stock ranks senior to our common stock with respect to dividend rights and rights on liquidation, winding-up and dissolution. The Preferred Stock has a stated value of $1,000 per share, and holders of Preferred Stock are entitled to cumulative dividends payable quarterly in cash at a rate of 6.50% per annum. Holders of Preferred Stock are entitled to vote together with the holders of the common stock as a single class, in each case, on an as-converted basis, except where a separate class vote of the common stockholders is required by law. Holders of Preferred Stock have certain limited special approval rights, including with respect to the issuance of pari passu or senior equity securities of the Company. The Preferred Stock is convertible at the option of the holders into shares of common stock at an initial conversion rate of 55.9284 shares of common stock for each share of Preferred Stock, which represents an initial conversion price of approximately $17.88 per share of common stock, subject to adjustment. On or after the fifth anniversary of the initial issuance of the Preferred Stock, the Company will have the option to redeem, in whole but not in part, all the outstanding shares of Preferred Stock, subject to certain redemption price adjustments on the basis of the date of the conversion. We may elect to convert the Preferred Stock, in whole but not in part, into the relevant number of shares of common stock on or after the 54th month after the initial issuance of the Preferred Stock if the last reported sale price of the common stock has been at least 150% of the conversion price then in effect for a specified period. The conversion rate is subject to customary anti-dilution and other adjustments. Holders of the Preferred Stock may, at their option, require the Company to repurchase their shares in the event of a fundamental change, as defined in the agreement. The repurchase price is based on the original $1,000 per share purchase price except in the case of a liquidation in which case they would receive the greater of $1,000 per share and the amount that would be received if they held common stock converted at the conversion rate in effect at the time of the fundamental change. Because this feature could require redemption as a result of the occurrence of an event not solely within the control of the Company, the Preferred Stock is classified as temporary equity on our balance sheet.

Stockholders' Equity

3 Months Ended

Mar. 31, 2016

Stockholders' Equity [Abstract]

Stockholders' Equity

NOTE 6 – STOCKHOLDERS’ EQUITY

Share Repurchase Program

In November 2015, the Company’s board of directors authorized a share repurchase program for common stock up to $100 million. The program is scheduled to expire December 31, 2017. The shares may be repurchased at management’s discretion in the open market. Depending on market conditions and other factors, these repurchases may be commenced or suspended from time to time without prior notice.


Summary of share repurchase activity under the repurchase program:

	Three Months Ended
	March 31,	March 31,
	2016	2015
Number of shares acquired on the open market	2,878,874	-
Average price per share	$ 13.39	$ -
Total cost of acquired shares (in millions)	$ 38	$ -

In total, we have acquired 3,695,263 shares under this program at a total cost of $50 million. There were 98,650,627 shares of common stock outstanding as of March 31, 2016.

Equity Compensation Plans

Our 2011 Omnibus Incentive Plan originally had 3,250,000 shares reserved for issuance under the plan. In April 2015, our shareholders approved an additional 4,250,000 shares for reservation for issuance under the plan. The plan permits the issuance of stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units and other stock-based and cash-based awards. Since the adoption of the 2011 Omnibus Incentive Plan, the Company’s Board of Directors has periodically granted stock options, restricted stock awards, restricted stock units and performance share units to directors and employees. Options and stock appreciation rights may not be granted at prices less than the fair market value of our common stock on the date of the grant, nor for a term exceeding ten years. For employees, vesting generally occurs ratably over a three to five year period on the anniversaries of the date specified in the employees’ respective stock option, restricted stock award, restricted stock unit and performance share unit award agreements, subject to accelerated vesting under certain circumstances set forth in the agreements. Vesting for directors generally occurs on the one-year anniversary of the grant date. In February 2016, 16,789 shares of restricted stock, 334,900 performance share unit awards and 1,149,039 restricted stock units were granted to employees. To date, before consideration of forfeitures, 4,987,800 shares have been granted to management, members of our Board of Directors and key employees under this plan. A Monte Carlo simulation is completed to estimate the fair value of performance share unit awards with a stock price performance component. A Black-Scholes option-pricing model is used to estimate the fair value of the stock options. We expense the fair value of equity grants on a straight-line basis over the vesting period.

Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss in the accompanying consolidated balance sheets consists of the following (in millions):



	March 31,	December 31,
	2016	2015

Currency translation adjustments	$ (215)	$ (231)
Pension related adjustments	(1)	(1)
Accumulated other comprehensive loss	$ (216)	$ (232)

Earnings per Share

Earnings per share are calculated in the table below (in millions, except per share amounts).



	Three Months Ended
	March 31,	March 31,
	2016	2015


Net (loss) income	$ (8)	$ 29
Less: Dividends on Series A Preferred Stock	6	-
Net (loss) income attributable to common stockholders	$ (14)	$ 29

Weighted average basic shares outstanding	100.7	102.1
Effect of dilutive securities	-	0.1
Weighted average diluted shares outstanding	100.7	102.2

Net (loss) income per share:
Basic	$ (0.14)	$ 0.28
Diluted	$ (0.14)	$ 0.28

Equity awards and shares of Preferred Stock are disregarded in the calculation of diluted earnings per share if they are determined to be anti-dilutive. For the three months ended March 31, 2016, all of the shares of the newly issued Preferred Stock were anti-dilutive. For the three months ended March 31, 2016 and 2015, we had approximately 3.8 million and 3.9 million anti-dilutive stock options, respectively. There were 0.6 million and no anti-dilutive restricted stock, restricted units or performance stock unit awards for the three months ended March 31, 2016 and 2015, respectively.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph d
-Article 4

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 17: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
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-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Segment Information

3 Months Ended

Mar. 31, 2016

Segment Information [Abstract]

Segment Information

NOTE 7 – SEGMENT INFORMATION

We operate as three business segments, U.S., Canada and International. Our International segment consists of our operations outside of the U.S. and Canada. These segments represent our business of selling pipe, valves and fittings (“PVF”) to the energy sector across each of the upstream (exploration, production and extraction of underground oil and gas), midstream (gathering and transmission of oil and gas, gas utilities, and the storage and distribution of oil and gas) and downstream (crude oil refining and petrochemical processing) markets. Effective April 1, 2016, we made organizational changes that will result in the Eastern and Western regions of the U.S. being considered separate operating segments. These two U.S. operating segments will be aggregated into a single reportable segment based on their economic similarities. As a result, we will continue to report segment information for the U.S., Canada and International.

The following table presents financial information for each segment (in millions):


	Three Months Ended
	March 31,	March 31,
	2016	2015
Sales
U.S.	$ 606	$ 972
Canada	64	119
International	113	201
Sales	$ 783	$ 1,292

Operating (loss) income
U.S.	$ 4	$ 52
Canada	(1)	6
International	(7)	3
Operating (loss) income	(4)	61

Interest expense	(8)	(15)
Other, net	(1)	(4)
Income (loss) before income taxes	$ (13)	$ 42


	March 31,	December 31,
	2016	2015
Total assets
U.S.	$ 2,055	$ 2,135
Canada	148	142
International	231	220
Total assets	$ 2,434	$ 2,497

Our sales by product line are as follows (in millions):


	Three Months Ended
	March 31,	March 31,
Type	2016	2015
Energy carbon steel tubular products:
Line pipe (1)	$ 132	$ 266
Oil country tubular goods (OCTG)	-	106
	$ 132	$ 372


Valves, fittings, flanges and other products:
Valves and specialty products	$ 299	$ 411
Carbon steel fittings and flanges and
stainless steel and alloy pipe and fittings	168	269
Other	184	240
	$ 651	$ 920

(1)

As a result of the disposition of our OCTG product line, as described in Note 4, pre-disposition OCTG sales of $18 million have been included within line pipe sales for the three months ended March 31, 2016.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 35
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

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-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 10
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 29
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

+ Details

Fair Value Measurements	3 Months Ended
Fair Value Measurements	Mar. 31, 2016
Fair Value Measurements [Abstract]
Fair Value Measurements	NOTE 8 – FAIR VALUE MEASUREMENTS From time to time, we use derivative financial instruments to help manage our exposure to interest rate risk and fluctuations in foreign currencies. All of our derivative instruments are freestanding and, accordingly, changes in their fair market value are recorded in earnings. As of March 31, 2016, we do not have any interest rate swap agreements. Foreign exchange forward contracts and options are reported at fair value utilizing Level 2 inputs, as the fair value is based on broker quotes for the same or similar derivative instruments. The total notional amount of our forward foreign exchange contracts and options was approximately $48 million and $41 million at March 31, 2016 and December 31, 2015, respectively. We had approximately $1 million and $0 million recorded as liabilities on our consolidated balance sheets as of March 31, 2016 and December 31, 2015, respectively. With the exception of long-term debt, the fair values of our financial instruments, including cash and cash equivalents, accounts receivable, trade accounts payable and accrued liabilities approximate carrying value. The carrying value of our debt was $518 million and $519 million at March 31, 2016 and December 31, 2015, respectively. We estimate the fair value of the Term Loan using Level 2 inputs, or quoted market prices. The fair value of our debt was $507 million and $510 million at March 31, 2016 and December 31, 2015, respectively.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2016
Commitments and Contingencies [Abstract]
Commitments and Contingencies	NOTE 9 – COMMITMENTS AND CONTINGENCIES Litigation Asbestos Claims. We are one of many defendants in lawsuits that plaintiffs have brought seeking damages for personal injuries that exposure to asbestos allegedly caused. Plaintiffs and their family members have brought these lawsuits against a large volume of defendant entities as a result of the defendants’ manufacture, distribution, supply or other involvement with asbestos, asbestos containing-products or equipment or activities that allegedly caused plaintiffs to be exposed to asbestos. These plaintiffs typically assert exposure to asbestos as a consequence of third-party manufactured products that our MRC Global (US) Inc. subsidiary purportedly distributed. As of March 31, 2016, we are named a defendant in approximately 482 lawsuits involving approximately 1,106 claims. No asbestos lawsuit has resulted in a judgment against us to date, with a majority being settled, dismissed or otherwise resolved. Applicable third-party insurance has substantially covered these claims, and insurance should continue to cover a substantial majority of existing and anticipated future claims. Accordingly, we have recorded a liability for our estimate of the most likely settlement of asserted claims and a related receivable from insurers for our estimated recovery, to the extent we believe that the amounts of recovery are probable. It is not possible to predict the outcome of these claims and proceedings. However, in our opinion, the likelihood that the ultimate disposition of any of these claims and legal proceedings will have a material adverse effect on our consolidated financial statements is remote. Other Legal Claims and Proceedings. From time to time, we have been subject to various claims and involved in legal proceedings incidental to the nature of our businesses. We maintain insurance coverage to reduce financial risk associated with certain of these claims and proceedings. It is not possible to predict the outcome of these claims and proceedings. However, in our opinion, the likelihood that the ultimate disposition of any of these claims and legal proceedings will have a material adverse effect on our consolidated financial statements is remote. Product Claims. From time to time, in the ordinary course of our business, our customers may claim that the products that we distribute are either defective or require repair or replacement under warranties that either we or the manufacturer may provide to the customer. These proceedings are, in the opinion of management, ordinary and routine matters incidental to our normal business. Our purchase orders with our suppliers generally require the manufacturer to indemnify us against any product liability claims, leaving the manufacturer ultimately responsible for these claims. In many cases, state, provincial or foreign law provides protection to distributors for these sorts of claims, shifting the responsibility to the manufacturer. In some cases, we could be required to repair or replace the products for the benefit of our customer and seek our recovery from the manufacturer for our expense. In our opinion, the likelihood that the ultimate disposition of any of these claims and legal proceedings will have a material adverse effect on our consolidated financial statements is remote. Weatherford Claim. In addition to PVF, our Canadian subsidiary, Midfield Supply (“Midfield”), now known as MRC Global (Canada) ULC, also distributed progressive cavity pumps and related equipment (“PCPs”) under a distribution agreement with Weatherford Canada Partnership (“Weatherford”) within a certain geographical area located in southern Alberta, Canada. In late 2005 and early 2006, Midfield hired new employees, including former Weatherford employees, as part of Midfield’s desire to expand its PVF business into northern Alberta. Shortly thereafter, many of these employees left Midfield and formed a PCP manufacturing, distribution and service company named Europump Systems Inc. (“Europump”) in 2006. A subsidiary of Halliburton Company purchased Europump in 2014. The distribution agreement with Weatherford expired in 2006. Midfield supplied Europump with PVF products that Europump distributed along with PCP pumps. In April 2007, Midfield purchased Europump’s distribution branches and began distributing and servicing Europump PCPs. Pursuant to a complaint that Weatherford filed on April 11, 2006 in the Court of Queen’s Bench of Alberta, Judicial Bench of Edmonton (Action No. 060304628), Weatherford sued Europump, three of Europump’s part suppliers, Midfield, certain current and former employees of Midfield, and other related entities, asserting a host of claims including breach of contract, breach of fiduciary duty, misappropriation of confidential information related to the PCPs, unlawful interference with economic relations and conspiracy. The Company denies these allegations and contends that Midfield’s expansion and subsequent growth was the result of fair competition. From 2006 through 2012, the case focused largely on Weatherford’s questioning of defense witnesses. In 2013, the defendants began substantive questioning of Weatherford and its witnesses. Discovery is ongoing and expected to last through 2016. In April 2016, the court dismissed two suppliers from the case. Weatherford has appealed this dismissal. The case is scheduled for trial on January 16, 2017. While the Company believes Weatherford’s claims are without merit and we intend to defend against them vigorously, in November 2015, the Company filed with the Court a formal offer of settlement for $2 million plus one half of the Weatherford party’s costs and interest under the Judgment Interest Act and reserved $3 million for the offer. Weatherford declined to accept the offer. Customer Contracts We have contracts and agreements with many of our customers that dictate certain terms of our sales arrangements (pricing, deliverables, etc.). While we make every effort to abide by the terms of these contracts, certain provisions are complex and often subject to varying interpretations. Under the terms of these contracts, our customers have the right to audit our adherence to the contract terms. Historically, any settlements that have resulted from these customer audits have not been material to our consolidated financial statements. Purchase Commitments We have purchase obligations consisting primarily of inventory purchases made in the normal course of business to meet operating needs. While our vendors often allow us to cancel these purchase orders without penalty, in certain cases, cancellations may subject us to cancellation fees or penalties depending on the terms of the contract.

Background and Basis of Presentation (Policy)	3 Months Ended
Background and Basis of Presentation (Policy)	Mar. 31, 2016
Background and Basis of Presentation [Abstract]
Business Operations	Business Operations: MRC Global Inc. is a holding company headquartered in Houston, Texas. Our wholly owned subsidiaries are global distributors of pipe, valves, fittings (“PVF”) and related products and services across each of the upstream (exploration, production and extraction of underground oil and gas), midstream (gathering and transmission of oil and gas, gas utilities, and the storage and distribution of oil and gas) and downstream (crude oil refining and petrochemical processing) sectors. We have branches in principal industrial, hydrocarbon producing and refining areas throughout the United States, Canada, Europe, Asia, Australasia, the Middle East and Caspian. Our products are obtained from a broad range of suppliers.
Basis of Presentation	Basis of Presentation: We have prepared our unaudited condensed consolidated financial statements in accordance with Rule 10-01 of Regulation S-X for interim financial statements. These statements do not include all information and footnotes that generally accepted accounting principles require for complete annual financial statements. However, the information in these statements reflects all normal recurring adjustments which are, in our opinion, necessary for a fair presentation of the results for the interim periods. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results that will be realized for the fiscal year ending December 31, 2016. We have derived our condensed consolidated balance sheet as of December 31, 2015 from the audited consolidated financial statements for the year ended December 31, 2015. You should read these condensed consolidated financial statements in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2015. The consolidated financial statements include the accounts of MRC Global Inc. and its wholly owned and majority owned subsidiaries (collectively referred to as the “Company” or by such terms as “we,” “our” or “us”). All material intercompany balances and transactions have been eliminated in consolidation.
Reclassifications	Reclassifications: Certain prior-period amounts have been reclassified to conform to the current year presentation, which includes the adoption of Accounting Standards Update (“ASU”) 2015-03 Interest-Imputation of Interest (Subtopic 855-30): Simplifying the Presentation of Debt Issuance Costs.
Recent Accounting Pronouncements	Recent Accounting Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 provides comprehensive guidance on the recognition of revenue from customers arising from the transfer of goods and services. The ASU also provides guidance on accounting for certain contract costs and requires new disclosures. The FASB voted to defer the effective date of ASU 2014-09 by one year to annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. We are currently evaluating the effect of the adoption of ASU 2014-09 on our consolidated financial statements and the implementation approach to be used. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. ASU 2015-11 provides guidance on simplifying the measurement of inventory. The current standard is to measure inventory at lower of cost or market; where market could be replacement cost, net realizable value or net realizable value less an approximately normal profit margin. ASU 2015-11 updates this guidance to measure inventory at the lower of cost or net realizable value; where net realizable value is considered to be the estimated selling price in the ordinary course of business, less reasonably predictable cost of completion, disposal and transportation. We expect to adopt this guidance in 2016. This amendment is not expected to have a material impact on the Company's financial position, results of operation or cash flows. In February 2016, the FASB issued ASU 2016-02, Leases, which will replace the existing guidance in ASC 870, Leases. This ASU requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases. Both finance leases and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability. For finance leases, the lessee would recognize interest expense and amortization of the right-of-use asset, and for operating leases, the lessee would recognize a straight-line total lease expense. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2018. We are beginning to evaluate the effect of the adoption of ASU 2016-02 on our consolidated financial results. In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation, which simplifies the accounting for the taxes related to stock based compensation. Under the standard, excess tax benefits and certain tax deficiencies will no longer be recorded in additional paid-in capital (“APIC”) and APIC pools will be eliminated. Instead, all excess tax benefits and tax deficiencies will be recorded as income tax expense or benefit in the income statement. In addition, excess tax benefits are required to be presented as operating activities rather than financing activities in the statement of cash flows. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2016. This amendment is not expected to have a material impact on the Company's financial position, results of operations or cash flows.

Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventories [Abstract]

Composition of Inventory


	March 31,	December 31,
	2016	2015
Finished goods inventory at average cost:
Energy carbon steel tubular products	$ 176	$ 253
Valves, fittings, flanges and all other products	653	647
	829	900
Less: Excess of average cost over LIFO cost (LIFO reserve)	(78)	(89)
Less: Other inventory reserves	(31)	(30)
	$ 720	$ 781

Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2016

Long-Term Debt [Abstract]

Components of Long-Term Debt


	March 31,	December 31,
	2016	2015
Senior Secured Term Loan B, net of discount and issuance costs of $6 and $7, respectively	$ 518	$ 519
Global ABL Facility	-	-
	518	519
Less: Current portion	8	8
	$ 510	$ 511

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 8
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-Name Accounting Standards Codification
-Topic 505
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2016

Stockholders' Equity [Abstract]

Summary of Share Repurchase Activity


Summary of share repurchase activity under the repurchase program:

	Three Months Ended
	March 31,	March 31,
	2016	2015
Number of shares acquired on the open market	2,878,874	-
Average price per share	$ 13.39	$ -
Total cost of acquired shares (in millions)	$ 38	$ -

Accumulated Other Comprehensive Loss in Accompanying Consolidated Balance Sheets



	March 31,	December 31,
	2016	2015

Currency translation adjustments	$ (215)	$ (231)
Pension related adjustments	(1)	(1)
Accumulated other comprehensive loss	$ (216)	$ (232)

Earnings Per Share



	Three Months Ended
	March 31,	March 31,
	2016	2015


Net (loss) income	$ (8)	$ 29
Less: Dividends on Series A Preferred Stock	6	-
Net (loss) income attributable to common stockholders	$ (14)	$ 29

Weighted average basic shares outstanding	100.7	102.1
Effect of dilutive securities	-	0.1
Weighted average diluted shares outstanding	100.7	102.2

Net (loss) income per share:
Basic	$ (0.14)	$ 0.28
Diluted	$ (0.14)	$ 0.28

Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Information [Abstract]

Schedule of Financial Information for Each Segment


	Three Months Ended
	March 31,	March 31,
	2016	2015
Sales
U.S.	$ 606	$ 972
Canada	64	119
International	113	201
Sales	$ 783	$ 1,292

Operating (loss) income
U.S.	$ 4	$ 52
Canada	(1)	6
International	(7)	3
Operating (loss) income	(4)	61

Interest expense	(8)	(15)
Other, net	(1)	(4)
Income (loss) before income taxes	$ (13)	$ 42


	March 31,	December 31,
	2016	2015
Total assets
U.S.	$ 2,055	$ 2,135
Canada	148	142
International	231	220
Total assets	$ 2,434	$ 2,497

Schedule of Net Sales by Product Line


	Three Months Ended
	March 31,	March 31,
Type	2016	2015
Energy carbon steel tubular products:
Line pipe (1)	$ 132	$ 266
Oil country tubular goods (OCTG)	-	106
	$ 132	$ 372


Valves, fittings, flanges and other products:
Valves and specialty products	$ 299	$ 411
Carbon steel fittings and flanges and
stainless steel and alloy pipe and fittings	168	269
Other	184	240
	$ 651	$ 920

Inventories (Details) - USD ($) $ in Millions	3 Months Ended
Inventories (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Finished goods inventory at average cost:
Finished goods inventory at average cost	$ 829.0		$ 900.0
Less: Excess of average cost over LIFO cost (LIFO reserve)	(78.0)		(89.0)
Less: Other inventory reserves	(31.0)		(30.0)
Inventories, net	720.0		781.0
Effect of LIFO decrement on cost of sales	1.0	$ 0.0
Energy carbon steel tubular products [Member]
Finished goods inventory at average cost:
Finished goods inventory at average cost	176.0		253.0
Valves, fittings, flanges and all other products [Member]
Finished goods inventory at average cost:
Finished goods inventory at average cost	$ 653.0		$ 647.0

Long-Term Debt (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Proceeds from revolving credit facilities	$ 23.0	$ 243.0
Reclassified debt issuance costs	4.0		$ 5.0
Long-term debt, net	$ 510.0		511.0
Scenario, Previously Reported [Member]
Debt Instrument [Line Items]
Long-term debt, net			524.0
Revolving credit facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	Jul. 31, 2019
Credit facility, maximum borrowing capacity	$ 1,050.0
Proceeds from revolving credit facilities	300.0
Revolving credit facility [Member] \| U.S. [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	977.0
Revolving credit facility [Member] \| Canada [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	20.0
Revolving credit facility [Member] \| United Kingdom [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	5.0
Revolving credit facility [Member] \| Australia [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	10.0
Revolving credit facility [Member] \| Netherlands [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	4.0
Revolving credit facility [Member] \| Belgium [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	4.0
Revolving credit facility [Member] \| Norway [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	30.0
Global ABL Facility [Member]
Debt Instrument [Line Items]
Credit facility, remaining borrowing capacity	587.0
Debt issuance costs	8.0		$ 8.0
Senior Secured Term Loan B [Member]
Debt Instrument [Line Items]
New Term Loan	$ 794.0
Debt maturity period	7 years
Term loan annual amortization percentage	1.00%
Debt instrument, maturity date	Nov. 30, 2019
Term Loan accordion feature	$ 200.0
Percentage of capital stock in foreign subsidiaries securing Term Loan B	65.00%
Debt instrument, interest rate	5.16%		4.98%
Senior Secured Term Loan B [Member] \| Senior Secured Leverage Ratio Is No More Than 2.75 to 1.00 [Member]
Debt Instrument [Line Items]
Senior secured leverage ratio	2.75
Repayment of Term Loan, percentage	25.00%
Senior Secured Term Loan B [Member] \| Senior Secured Leverage Ratio Is No More Than 2.50 to 1.00 [Member]
Debt Instrument [Line Items]
Senior secured leverage ratio	2.50
Repayment of Term Loan, percentage	0.00%
Senior Secured Term Loan B [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Senior secured leverage ratio	3.50
Repayment of Term Loan, percentage	50.00%

Long-Term Debt (Components of Long-Term Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 518	$ 519
Less: Current portion	8	8
Long-term debt, net	510	511
Senior secured term loan [Member]
Debt Instrument [Line Items]
Long-term debt	518	519
Original issue discount on senior secured Term Loan B	$ 6	$ 7

Disposition Of Non-Core Product Line (Details) - Disposal Group, Not Discontinued Operations [Member] - U.S. Oil Country Tubular Goods [Member] - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Feb. 29, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposition of product line		$ 48
Inventory	$ 50
Loss on disposition	$ 5

Redeemable Preferred Stock (Details) $ / shares in Units, $ in Millions	1 Months Ended
	Jun. 30, 2015 USD ($) $ / shares shares
Stockholders' Equity [Abstract]
Preferred stock, issued \| shares	363,000
Gross proceeds from issuance of Series A Preferred Stock \| $	$ 363
Preferred stock, stated value \| $ / shares	$ 1,000
Preferred stock, dividend rate	6.50%
Preferred stock, initial conversion rate \| shares	55.9284
Preferred stock, initial conversion price \| $ / shares	$ 17.88
Preferred stock, common stock as percentage of conversion price	150.00%

Stockholders' Equity (Narrative) (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended	63 Months Ended
Stockholders' Equity (Narrative) (Details) - USD ($)	Feb. 29, 2016	Apr. 30, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2016	Nov. 30, 2015
Stockholders Equity [Line Items]
Share repurchase program, total shares acquired					3,695,263
Share repurchase program, cost of total shares acquired					$ 50,000,000
Common stock, shares outstanding			98,650,627		98,650,627	98,650,627
2015 Share Repurchase Program [Member]
Stockholders Equity [Line Items]
Share repurchase program, authorized amount							$ 100,000,000
Share repurchase program, expiration date			Dec. 31, 2017
2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Shares reserved for Incentive Plan			3,250,000		3,250,000	3,250,000
Additional shares reserved for Incentive Plan		4,250,000
Stock granted						4,987,800
Director [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Vesting period			1 year
Minimum [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Vesting period			3 years
Maximum [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Vesting period			5 years
Stock Options [Member]
Stockholders Equity [Line Items]
Anti-dilutive securities			3,800,000	3,900,000
Stock Options [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Maximum term for stock option plan grant			10 years
Restricted Stock [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Stock granted	16,789
Performance Shares [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Stock granted	334,900
Restricted Stock Units (RSUs) [Member] \| 2011 Omnibus Incentive Plan [Member]
Stockholders Equity [Line Items]
Stock granted	1,149,039
Restricted Stock, Restricted Unites And Performance Stock Units [Member]
Stockholders Equity [Line Items]
Anti-dilutive securities			600,000	0

Stockholders' Equity (Summary of Share Repurchase Activity) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Total cost of acquired shares	$ 38
2015 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares acquired on the open market	2,878,874
Average price per share	$ 13.39
Total cost of acquired shares	$ 38

Stockholders' Equity (Accumulated Other Comprehensive Loss in Accompanying Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Stockholders' Equity [Abstract]
Currency translation adjustments	$ (215)	$ (231)
Pension related adjustments	(1)	(1)
Accumulated other comprehensive loss	$ (216)	$ (232)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details

Stockholders' Equity (Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stockholders' Equity [Abstract]
Net (loss) income	$ (8)	$ 29
Less: Dividends on Series A Preferred Stock	6
Net (loss) income attributable to common stockholders	$ (14)	$ 29
Weighted average basic shares outstanding	100.7	102.1
Effect of dilutive securities		0.1
Weighted average diluted shares outstanding	100.7	102.2
Net (loss) income per share:
Basic	$ (0.14)	$ 0.28
Diluted	$ (0.14)	$ 0.28

Segment Information (Narrative) (Details) - segment		3 Months Ended
Segment Information (Narrative) (Details) - segment	Apr. 01, 2016	Mar. 31, 2016
U.S., Canada And International [Member]
Segment Information [Line Items]
Number of operating segments		3
Subsequent Event [Member] \| U.S. [Member]
Segment Information [Line Items]
Number of operating segments	2
Number of Reportable Segments	1

Segment Information (Schedule of Financial Information for Each Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Sales
Sales	$ 783	$ 1,292
Operating income
Operating (loss) income	(4)	61
Interest expense	(8)	(15)
Other, net	(1)	(4)
(Loss) income before income taxes	(13)	42
Total assets
Total assets	2,434		$ 2,497
U.S. [Member]
Sales
Sales	606	972
Operating income
Operating (loss) income	4	52
Total assets
Total assets	2,055		2,135
Canada [Member]
Sales
Sales	64	119
Operating income
Operating (loss) income	(1)	6
Total assets
Total assets	148		142
International [Member]
Sales
Sales	113	201
Operating income
Operating (loss) income	(7)	$ 3
Total assets
Total assets	$ 231		$ 220

Segment Information (Schedule of Net Sales by Product Line) (Details) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2016

Mar. 31, 2015

Energy carbon steel tubular products [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

$ 132

$ 372

Energy carbon steel tubular products [Member] | Line pipe [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

^[1]

132

266

Energy carbon steel tubular products [Member] | Oil country tubular goods (OCTG) [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

106

Valves, fittings, flanges and all other products [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

651

920

Valves, fittings, flanges and all other products [Member] | Valves and Specialty Products [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

299

411

Valves, fittings, flanges and all other products [Member] | Carbon steel fittings and flanges and stainless steel and alloy pipe and fittings [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

168

269

Valves, fittings, flanges and all other products [Member] | Other [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Net Sales

184

$ 240

U.S. Oil Country Tubular Goods [Member] | Disposal Group, Not Discontinued Operations [Member]

Segment Reporting, Revenue Reconciling Item [Line Items]

Pre-disposition sales

$ 18

[1]	As a result of the disposition of our OCTG product line, as described in Note 4, pre-disposition OCTG sales of $18 million have been included within line pipe sales for the three months ended March 31, 2016

Fair Value Measurements (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Long-term Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of debt	$ 518	$ 519
Long-term Debt [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of our debt	507	510
Foreign exchange forward contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of forward foreign exchange contracts and options	48	41
Foreign exchange forward contracts [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of forward foreign exchange contracts and options	$ 1	$ 0

Commitments and Contingencies (Details) $ in Millions	1 Months Ended
Commitments and Contingencies (Details) $ in Millions	Apr. 30, 2016 item	Nov. 30, 2015 USD ($)	Mar. 31, 2016 USD ($) claim lawsuit
Loss Contingencies [Line Items]
Number of lawsuits \| lawsuit			482
Asbestos related pending claims \| claim			1,106
Settlement offer		$ 2
Litigation reserve			$ 3
Subsequent Event [Member]
Loss Contingencies [Line Items]
Suppliers dismissed from case \| item	2