Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Allocation of Total Income Taxes

Income Tax Allocation
	Three Months Ended June 30,						Six Months Ended June 30,
(Dollars in millions)	2015			2014			2015			2014
Income tax benefit/(provision) applicable to:
Income/(loss) from continuing operations, before income taxes	$	4		$	167		$	(188	)	$	309
Discontinued operations	$	—		$	2		—			13
Effective tax rate benefit	(8.7		)%	30.1		%	2.7		%	31.0		%