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Business Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Business Segments
Total Revenue	$ 3,740	$ 3,011	$ 10,399	$ 8,984
Total Operating Profit	772	596	2,089	1,823
Percentage as of operating profit to revenue	20.60%	19.80%	20.10%	20.30%
Business Segments (Textuals) [Abstract]
Revenue from shipyard customer	13.00%	14.00%	12.00%	17.00%
Rig Technology [Member]
Business Segments
Total Revenue	1,970	1,650	5,472	5,208
Total Operating Profit	523	478	1,456	1,564
Percentage as of operating profit to revenue	26.50%	29.00%	26.60%	30.00%
Petroleum Services & Supplies [Member]
Business Segments
Total Revenue	1,460	1,089	4,084	3,045
Total Operating Profit	298	164	777	415
Percentage as of operating profit to revenue	20.40%	15.10%	19.00%	13.60%
Distribution Services [Member]
Business Segments
Total Revenue	480	424	1,313	1,123
Total Operating Profit	37	24	90	48
Percentage as of operating profit to revenue	7.70%	5.70%	6.90%	4.30%
Elimination [Member]
Business Segments
Total Revenue	(170)	(152)	(470)	(392)
Total Operating Profit	$ (86)	$ (70)	$ (234)	$ (204)

X

- Definition

Business segments.

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Percentage as of operating profit to revenue.

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- Definition

Revenue from shipyard customer.

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- Definition

Segment Reporting Information By Segment.

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

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- 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1



Reference 2: 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=6880815&loc=d3e20235-122688

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