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	235			235			235
Net income attributable to noncontrolling interests	46							46
Net income	281
Other comprehensive income	234				232		232	2
Dividends paid to noncontrolling interests	(37)							(37)
Restricted stock awarded	0		(1)			1
Stock-based compensation	10		10				10
Common stock issued	8		6			2	8
Common stock repurchased	(289)		(262)			(27)	(289)
Balance at end of period at Jun. 30, 2017	935	929	199	2,916	(3,168)	(254)	622	313
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	222			222			222
Net income attributable to noncontrolling interests	38							38
Net income	260
Other comprehensive income	(58)				(56)		(56)	(2)
Dividends paid to noncontrolling interests	(6)							(6)
Restricted stock awarded	0		(5)			5
Stock-based compensation	11		11				11
Common stock issued	1		1				1
Common stock repurchased	(4)		(4)				(4)
Balance at end of period at Jun. 30, 2018	$ 1,137	$ 929	$ 170	$ 3,232	$ (3,294)	$ (253)	$ 784	$ 353