Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Allocation of Total Income Taxes

Income Tax Allocation
	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in millions)	2015			2014			2015			2014
Income tax benefit/(provision) applicable to:
Income/(loss) from continuing operations, before income taxes	$	187		$	170		$	(1	)	$	480
Discontinued operations	$	—		$	(2	)	—			11
Effective tax rate benefit	19.8		%	15.4		%	—		%	22.9		%