Income Taxes (Tables)

6 Months Ended

Jun. 30, 2011

Income Taxes (Tables) [Abstract]

Components of tax charge

	Three months ended June 30, 2011
	Income					Effective
	before tax		Tax			tax rate
	(millions, except percentages)
Ordinary income taxed at estimated annual effective tax rate	$	123	$	(31	)		25	%
As reported	$	123	$	(31	)		25	%

	Six months ended June 30, 2011
	Income						Effective
	before tax			Tax			tax rate
	(millions, except percentages)
Ordinary income taxed at estimated annual effective tax rate	$	317		$	(79	)		25	%
Items where tax effect is treated discretely:
Make-whole on repurchase and redemption of senior notes and write-off of unamortized debt issuance costs		(171	)		47			27	%
Non-taxable gain on disposal of operations		4			—			—	%
As reported	$	150		$	(32	)		21	%