Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Changes in accumulated other comprehensive loss by component, net of income taxes

Changes in accumulated other comprehensive loss by component, net of income taxes, consisted of the following:

(In millions)	Cash Flow Hedges			Foreign Currency Translation			Other			Total
Balance at December 31, 2017	$	(14	)	$	(38	)	$	(2	)	$	(54	)
Net current-period other comprehensive loss	(11		)	(14		)	—			(25		)
Cumulative-effect adjustment of ASU 2017-12 adoption from retained earnings	3			—			—			3
Cumulative-effect adjustment of ASU 2018-02 adoption to retained earnings	(3		)	—			—			(3		)
Balance at September 30, 2018	$	(25	)	$	(52	)	$	(2	)	$	(79	)

(In millions)	Cash Flow Hedges			Foreign Currency Translation			Other			Total
Balance at December 31, 2016	$	(24	)	$	(50	)	$	(2	)	$	(76	)
Other comprehensive income before reclassifications	2			14			—			16
Amounts reclassified from accumulated other comprehensive loss	5			—			—			5
Net current-period other comprehensive income	7			14			—			21
Balance at September 30, 2017	$	(17	)	$	(36	)	$	(2	)	$	(55	)