Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 3,035		$ 3,046		$ 5,790	$ 5,243
Cost of products sold, excluding depreciation and amortization	2,417		2,466		4,627	4,274
Depreciation and amortization	123		113		245	178
Selling and administrative expense	157		159		314	249
Restructuring and other	(45)		16		(41)	29
Income from operations	383		292		645	513
Loss from early extinguishments of debt	0		0		6	0
Other pension and postretirement	29		(17)		11	(34)
Interest expense	97		103		195	177
Interest income	(4)		(5)		(7)	(11)
Foreign exchange	1		10		2	28
Income before income taxes	260		201		438	353
Provision for income taxes	88		55		136	94
Equity earnings / (loss) in affiliates	2		1		3	1
Net income	174	$ 131	147	$ 113	305	260
Net income attributable to noncontrolling interests	(37)		(15)		(65)	(38)
Net income attributable to Crown Holdings	$ 137		$ 132		$ 240	$ 222
Earnings per common share attributable to Crown Holdings:
Basic (in usd per share)	$ 1.02		$ 0.99		$ 1.79	$ 1.66
Diluted (in usd per share)	$ 1.02		$ 0.99		$ 1.78	$ 1.66