Income Taxes (Tables)

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of income tax allocation

Income Tax Allocation
	Three Months Ended March 31,
(Dollars in millions)	2020			2019
Income/(loss) before income taxes	$	242		$	(247	)
Income tax benefit/(provision)	$	(54	)	$	29
Effective tax rate	22.3		%	11.7		%