Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Table Text Block [Abstract]

Other Intangible Assets

 Intangible assets and associated amortization expense were as follows:

millions	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Amortization Expense
December 31, 2013
Offshore platform leases	$	60	$	(50	)	$	10	$	3
Customer contracts	169		(9		)	160		4
	$	229	$	(59	)	$	170	$	7
December 31, 2012
Offshore platform leases	$	60	$	(36	)	$	24	$	3
Customer contracts	169		(5		)	164		3
	$	229	$	(41	)	$	188	$	6