Goodwill (Tables)

9 Months Ended

Sep. 30, 2011


										(Stated in millions)
	Reservoir			Reservoir
	Characterization			Production			Drilling			Distribution		Total
Balance at January 1, 2011	$	3,381		$	2,351		$	8,150		$	70	$	13,952
Adjustments relating to Smith acquisition		—			13			175			6		194
Other acquisitions		—			—			47			—		47
Divestiture of business		(51	)		—			—			—		(51	)
Impact of changes in exchange rates		(10	)		(8	)		(6	)		—		(24	)

Balance at September 30, 2011	$	3,320		$	2,356		$	8,366		$	76	$	14,118

- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

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