Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 11,394	$ 9,392	$ 9,559
Cost of products sold, excluding depreciation and amortization	9,029	7,359	7,575
Depreciation and amortization	447	422	431
Selling and administrative expense	583	533	556
Restructuring and other	(28)	30	(30)
Income from operations	1,363	1,048	1,027
Loss from early extinguishments of debt	68	0	27
Other pension and postretirement	1,515	43	10
Interest expense	253	290	367
Interest income	(9)	(8)	(15)
Foreign exchange	(45)	(2)	7
(Loss) / income from continuing operations before income taxes and equity in net earnings of affiliates	(419)	725	631
(Benefit from) / provision for income taxes	(57)	199	136
Equity in net earnings of affiliates	3	6	5
Net (loss) / income from continuing operations	(359)	532	500
Net (loss) / income from discontinued operations	(52)	156	125
Net (loss) / income	(411)	688	625
Net income from continuing operations attributable to noncontrolling interests	148	108	113
Net income from discontinued operations attributable to noncontrolling interests	1	1	2
Net (loss) / income attributable to Crown Holdings	(560)	579	510
Net (loss) / income from continuing operations attributable to Crown Holdings	(507)	424	387
Net (loss) / income from discontinued operations attributable to Crown Holdings	$ (53)	$ 155	$ 123
Earnings per common share attributable to Crown Holdings:
Basic (loss) / earnings per common share from continuing operations (in dollars per share)	$ (3.89)	$ 3.18	$ 2.89
Basic (loss) / earnings per common share from discontinued operations (in dollars per share)	(0.41)	1.16	0.92
Basic (in dollars per share)	(4.30)	4.34	3.81
Diluted (loss) / earnings per common share from continuing operations (in dollars per share)	(3.89)	3.15	2.87
Diluted (loss) / earnings per common share from discontinued operations (in dollars per share)	(0.41)	1.15	0.91
Diluted (in dollars per share)	$ (4.30)	$ 4.30	$ 3.78