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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011


	Gross Carrying		Accumulated		Net Carrying		Amortization
millions	Amount		Amortization		Amount		Expense
December 31, 2011
Offshore platform leases	$	60	$	(33)	$	27	$	2
Customer contracts		165		(2)		163		2
	$	225	$	(35)	$	190	$	4


December 31, 2010
Offshore platform leases	$	60	$	(31)	$	29	$	3
	$	60	$	(31)	$	29	$	3

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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