Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 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	)
Other comprehensive loss before reclassifications	(1		)	—			—			(1		)
Amounts reclassified from accumulated other comprehensive loss	(1		)	—			—			(1		)
Net current-period other comprehensive loss	(2		)	—			—			(2		)
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 March 31, 2018	$	(16	)	$	(38	)	$	(2	)	$	(56	)

(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			5			—			7
Amounts reclassified from accumulated other comprehensive loss	2			—			—			2
Net current-period other comprehensive income	4			5			—			9
Balance at March 31, 2017	$	(20	)	$	(45	)	$	(2	)	$	(67	)