Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income
Beginning balance (in shares) at Dec. 31, 2016		131
Beginning balance at Dec. 31, 2016	$ 971	$ 1	$ 1,220	$ (161)	$ (89)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(67)			(67)
Employee stock compensation, employee stock purchase programs and option exercises (in shares)		2
Employee stock compensation, employee stock purchase programs and option exercises, net of tax	100		100
Purchases of treasury stock, retired (in shares)		(11)
Repurchases of common stock, retired	(351)			(351)
Pension and postemployment benefit plans, net of tax	(1)				(1)
Currency translation adjustment	16				16
Ending balance (in shares) at Dec. 31, 2017		122
Ending balance at Dec. 31, 2017	668	$ 1	1,320	(579)	(74)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	30			30
Employee stock compensation, employee stock purchase programs and option exercises (in shares)		2
Employee stock compensation, employee stock purchase programs and option exercises, net of tax	98		98
Purchases of treasury stock, retired (in shares)		(7)
Repurchases of common stock, retired	(300)			(300)
Pension and postemployment benefit plans, net of tax	(8)				(8)
Unrealized loss on derivatives, net of tax	(6)				(6)
Currency translation adjustment	(13)				(13)
Ending balance (in shares) at Dec. 31, 2018		117
Ending balance at Dec. 31, 2018	495	$ 1	1,418	(823)	(101)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(20)			(20)
Employee stock compensation, employee stock purchase programs and option exercises (in shares)		2
Employee stock compensation, employee stock purchase programs and option exercises, net of tax	127		127
Purchases of treasury stock, retired (in shares)		(8)
Repurchases of common stock, retired	(300)			(300)
Pension and postemployment benefit plans, net of tax	(21)				(21)
Unrealized loss on derivatives, net of tax	(9)				(9)
Currency translation adjustment	(10)				(10)
Ending balance (in shares) at Dec. 31, 2019		111
Ending balance at Dec. 31, 2019	$ 262	$ 1	$ 1,545	$ (1,143)	$ (141)