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Business Segments - Business Segments (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 5,777	$ 5,307
Total Operating Profit	861	751
Percentage as of operating profit to revenue	14.90%	14.20%
Operating Segments [Member] | Rig Technology [Member]
Segment Reporting Information [Line Items]
Revenue	3,009	2,628
Total Operating Profit	634	550
Percentage as of operating profit to revenue	21.10%	20.90%
Operating Segments [Member] | Petroleum Services & Supplies [Member]
Segment Reporting Information [Line Items]
Revenue	1,789	1,701
Total Operating Profit	321	255
Percentage as of operating profit to revenue	17.90%	15.00%
Operating Segments [Member] | Distribution & Transmission [Member]
Segment Reporting Information [Line Items]
Revenue	1,281	1,227
Total Operating Profit	55	63
Percentage as of operating profit to revenue	4.30%	5.10%
Unallocated/Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(302)	(249)
Total Operating Profit	$ (149)	$ (117)

X

- Definition

Percentage as of operating profit to revenue.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ 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

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