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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Goodwill is identified by segment

Goodwill is identified by segment as follows (in millions):

			$000,00.00				$000,00.00				$000,00.00				$000,00.00
		Rig Technology				Petroleum Services & Supplies				Distribution & Transmission				Total
Balance at December 31, 2009		$	1,567			$	3,855			$	67			$	5,489
Goodwill acquired during period			287				2				9				298
Currency translation adjustments			—				2				1				3

Balance at December 31, 2010			1,854				3,859				77				5,790
Goodwill acquired during period			117				233				27				377
Currency translation adjustments and other			(12	)			(3	)			(1	)			(16	)

Balance at December 31, 2011		$	1,959			$	4,089			$	103			$	6,151

Identified intangible assets identified by segment


		Rig Technology				Petroleum Services & Supplies				Distribution & Transmission				Total
Balance at December 31, 2009		$	416			$	3,630			$	6			$	4,052

Additions to intangible assets			291				8				—				299
Amortization			(38	)			(206	)			(1	)			(245	)
Currency translation adjustments			(3	)			—				—				(3	)

Balance at December 31, 2010			666				3,432				5				4,103
Additions to intangible assets			70				176				27				273
Amortization			(60	)			(213	)			(3	)			(276	)
Currency translation adjustments and other			(22	)			(4	)			(1	)			(27	)

Balance at December 31, 2011		$	654			$	3,391			$	28			$	4,073

Identified intangible assets by major classification


		Gross				Accumulated Amortization				Net Book Value
December 31, 2010:

Customer relationships		$	2,933			$	(536	)		$	2,397
Trademarks			677				(95	)			582
Indefinite-lived trade names			643				—				643
Other			655				(174	)			481

Total identified intangibles		$	4,908			$	(805	)		$	4,103

December 31, 2011:
Customer relationships		$	3,044			$	(717	)		$	2,327
Trademarks			716				(122	)			594
Indefinite-lived trade names			643				—				643
Other			751				(242	)			509

Total identified intangibles		$	5,154			$	(1,081	)		$	4,073

Changes in the carrying amount of service and product warranties


Balance at December 31, 2009		$	217

Net provisions for warranties issued during the year			52
Amounts incurred			(45	)
Currency translation adjustments			(9	)

Balance at December 31, 2010		$	215

Net provisions for warranties issued during the year			40
Amounts incurred			(47	)
Currency translation adjustments and other			3

Balance at December 31, 2011		$	211

Computation of weighted average basic and diluted shares outstanding


		Years Ended December 31,
		2011				2010				2009
Numerator:
Net income attributable to Company		$	1,994			$	1,667			$	1,469

Denominator:
Basic—weighted average common shares outstanding			422				417				416
Dilutive effect of employee stock options and other unvested stock awards			2				2				1

Diluted outstanding shares			424				419				417

Basic earnings attributable to Company per share		$	4.73			$	3.99			$	3.53

Diluted earnings attributable to Company per share		$	4.70			$	3.98			$	3.52

Cash dividends per share		$	0.45			$	0.41			$	1.10