Accumulated Other Comprehensive (Loss) Income - Changes in Accumulated Other Comprehensive Income (AOCI) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 495	$ 668	$ 971
Other comprehensive (loss) income	(40)	(27)	15
Ending balance	262	495	668
Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(6)	0	0
Other comprehensive loss before reclassifications	(9)	(6)	0
Amounts reclassified from AOCI	0	0	0
Other comprehensive (loss) income	(9)	(6)	0
Ending balance	(15)	(6)	0
Defined benefit plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(44)	(36)	(35)
Other comprehensive loss before reclassifications	(27)	(13)	(5)
Amounts reclassified from AOCI	6	5	4
Other comprehensive (loss) income	(21)	(8)	(1)
Ending balance	(65)	(44)	(36)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(51)	(38)	(54)
Other comprehensive loss before reclassifications	(10)	(13)	16
Amounts reclassified from AOCI	0	0	0
Other comprehensive (loss) income	(10)	(13)	16
Ending balance	(61)	(51)	(38)
Total AOCI
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(101)	(74)	(89)
Other comprehensive loss before reclassifications	(46)	(32)	11
Amounts reclassified from AOCI	6	5	4
Other comprehensive (loss) income	(40)	(27)	15
Ending balance	$ (141)	$ (101)	$ (74)