Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total Crown Equity	Noncontrolling Interests
Cumulative effect of change in accounting principles	$ 60			$ 60			$ 60
Balance at beginning of period at Dec. 31, 2016	668	$ 929	$ 446	2,621	$ (3,400)	$ (230)	366	$ 302
Net income attributable to Crown Holdings	412			412			412
Net income attributable to noncontrolling interests	77							77
Net income	489
Other comprehensive income	278				275		275	3
Dividends paid to noncontrolling interests	(68)							(68)
Restricted stock awarded	0		(1)			1
Stock-based compensation	16		16				16
Common stock issued	8		7			1	8
Common stock repurchased	(339)		(308)			(31)	(339)
Purchase of noncontrolling interests	0						0
Balance at end of period at Sep. 30, 2017	1,112	929	160	3,093	(3,125)	(259)	798	314
Cumulative effect of change in accounting principles	10			6	3		9	1
Balance at beginning of period at Dec. 31, 2017	923	929	167	3,004	(3,241)	(258)	601	322
Net income attributable to Crown Holdings	386			386			386
Net income attributable to noncontrolling interests	67							67
Net income	453
Other comprehensive income	(72)				(69)		(69)	(3)
Dividends paid to noncontrolling interests	(18)							(18)
Restricted stock awarded	0		(5)			5
Stock-based compensation	17		17				17
Common stock issued	1		1				1
Common stock repurchased	(4)		(4)				(4)
Balance at end of period at Sep. 30, 2018	$ 1,310	$ 929	$ 176	$ 3,396	$ (3,307)	$ (253)	$ 941	$ 369