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Business Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Business Segments
Revenue	$ 4,734	$ 3,513	$ 9,037	$ 6,659
Total Operating Profit	879	708	1,756	1,317
Percentage as of operating profit to revenue	18.60%	20.20%	19.40%	19.80%
Business Segments (Textual) [Abstract]
Revenue from shipyard customer	10.00%	12.00%	10.00%	12.00%
Rig Technology [Member]
Business Segments
Revenue	2,405	1,894	4,664	3,502
Total Operating Profit	554	514	1,101	933
Percentage as of operating profit to revenue	23.00%	27.10%	23.60%	26.60%
Petroleum Services & Supplies [Member]
Business Segments
Revenue	1,776	1,359	3,480	2,624
Total Operating Profit	390	249	778	480
Percentage as of operating profit to revenue	22.00%	18.30%	22.40%	18.30%
Distribution & Transmission [Member]
Business Segments
Revenue	780	423	1,344	833
Total Operating Profit	46	25	89	52
Percentage as of operating profit to revenue	5.90%	5.90%	6.60%	6.20%
Unallocated/Elimination [Member]
Business Segments
Revenue	(227)	(163)	(451)	(300)
Total Operating Profit	$ (111)	$ (80)	$ (212)	$ (148)

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Percentage as of operating profit to revenue.

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Revenue from shipyard customer.

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

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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=6880815&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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