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Business Segments - Schedule of Comparison of the Approximate Sales Mix in the Principal Product Categories (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenue
Total Revenue	$ 1,077	$ 1,072
Drilling and production [Member]
Revenue
Total Revenue	248	245
Valves [Member]
Revenue
Total Revenue	222	194
Pipe [Member]
Revenue
Total Revenue	202	220
Fittings and flanges [Member]
Revenue
Total Revenue	186	191
Mill tool, MRO, safety and other [Member]
Revenue
Total Revenue	$ 219	$ 222

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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Balance Type:	credit
Period Type:	duration

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration