Segment Information (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Year Swap Segment	Sep. 30, 2010
Summarized financial information
Revenue, Total		$ 5,178	$ 4,078	$ 14,444	$ 9,991
Profit (loss), Total		719	366	1,870	762
Corporate and Other		(78)	(54)	(208)	(159)
Interest expense, net		(58)	(39)	(164)	(93)
Loss on early extinguishment of debt	40	(40)		(40)
Acquisition-related costs			(12)		(78)
Segment Information (Textuals) [Abstract]
Number of reportable segment				5
North America [Member]
Summarized financial information
Revenue, Total		2,716	2,006	7,436	4,411
Profit (loss), Total		607	340	1,507	685
Latin America [Member]
Summarized financial information
Revenue, Total		568	431	1,583	1,087
Profit (loss), Total		71	9	205	31
Europe / Africa / Russia Caspian [Member]
Summarized financial information
Revenue, Total		850	757	2,427	2,213
Profit (loss), Total		105	47	243	196
Middle East / Asia Pacific [Member]
Summarized financial information
Revenue, Total		708	606	2,068	1,590
Profit (loss), Total		84	39	251	109
Industrial Services and Other [Member]
Summarized financial information
Revenue, Total		336	278	930	690
Profit (loss), Total		28	36	76	71
Total Operations [Member]
Summarized financial information
Revenue, Total		5,178	4,078	14,444	9,991
Profit (loss), Total		$ 895	$ 471	$ 2,282	$ 1,092

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Number of reportable segment.

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Segment Information.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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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.

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