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
Balance at beginning of period at Dec. 31, 2018	$ 1,286	$ 929	$ 186	$ 3,449	$ (3,374)	$ (253)	$ 937	$ 349
Net income attributable to Crown Holdings				103			103
Net income attributable to noncontrolling interests								28
Net income	131
Other comprehensive income	85				85		85
Dividends paid to noncontrolling interests	(9)						0	(9)
Restricted stock awarded	0		(1)			1	0
Stock-based compensation	8		8				8
Common stock issued	2		2				2
Common stock repurchased	(1)		(1)				(1)
Balance at end of period at Mar. 31, 2019	1,502	929	194	3,552	(3,289)	(252)	1,134	368
Balance at beginning of period at Dec. 31, 2018	1,286	929	186	3,449	(3,374)	(253)	937	349
Net income attributable to Crown Holdings	240
Net income attributable to noncontrolling interests	65
Net income	305
Other comprehensive income	100
Balance at end of period at Jun. 30, 2019	1,700	929	202	3,689	(3,274)	(252)	1,294	406
Balance at beginning of period at Mar. 31, 2019	1,502	929	194	3,552	(3,289)	(252)	1,134	368
Net income attributable to Crown Holdings	137			137			137
Net income attributable to noncontrolling interests	37							37
Net income	174
Other comprehensive income	15				15		15
Dividends paid to noncontrolling interests	(2)						0	(2)
Restricted stock awarded							0
Contributions from noncontrolling interest	3							3
Stock-based compensation	8		8				8
Common stock issued	1		1				1
Common stock repurchased	(1)		(1)				(1)
Balance at end of period at Jun. 30, 2019	1,700	929	202	3,689	(3,274)	(252)	1,294	406
Balance at beginning of period at Dec. 31, 2019	2,092	929	207	3,959	(3,131)	(251)	1,713	379
Net income attributable to Crown Holdings				88			88
Net income attributable to noncontrolling interests								26
Net income	114
Other comprehensive income	(96)				(91)		(91)	(5)
Dividends paid to noncontrolling interests	(11)							(11)
Restricted stock awarded	0		(1)			1
Stock-based compensation	10		10				10
Common stock issued	1		1				1
Common stock repurchased	(57)		(52)			(5)	(57)
Balance at end of period at Mar. 31, 2020	2,053	929	165	4,047	(3,222)	(255)	1,664	389
Balance at beginning of period at Dec. 31, 2019	2,092	929	207	3,959	(3,131)	(251)	1,713	379
Net income attributable to Crown Holdings	214
Net income attributable to noncontrolling interests	41
Net income	255
Other comprehensive income	(72)
Balance at end of period at Jun. 30, 2020	2,221	929	169	4,173	(3,201)	(255)	1,815	406
Balance at beginning of period at Mar. 31, 2020	2,053	929	165	4,047	(3,222)	(255)	1,664	389
Net income attributable to Crown Holdings	126			126			126
Net income attributable to noncontrolling interests	15							15
Net income	141
Other comprehensive income	24				21		21	3
Dividends paid to noncontrolling interests	(1)							(1)
Restricted stock awarded	0		(1)			1
Stock-based compensation	5		5				5
Common stock issued	0						0
Common stock repurchased	(1)					(1)	(1)
Balance at end of period at Jun. 30, 2020	$ 2,221	$ 929	$ 169	$ 4,173	$ (3,201)	$ (255)	$ 1,815	$ 406