Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net Sales	$ 2,791	$ 3,084	$ 3,035	$ 2,755	$ 2,734	$ 3,174	$ 3,046	$ 2,197	$ 11,665	$ 11,151	$ 8,698
Cost of products sold, excluding depreciation and amortization									9,349	9,028	7,006
Depreciation and amortization									490	425	247
Selling and administrative expense									631	558	367
Provision for asbestos									0	0	3
Restructuring and other									(26)	44	51
Goodwill impairment	25								25	0	0
Income from operations	199	352	383	262	218	365	292	221	1,196	1,096	1,024
Loss from early extinguishments of debt				(6)					27	0	7
Other pension and postretirement									13	(25)	(53)
Interest expense									378	384	252
Interest income									(17)	(21)	(15)
Foreign exchange									9	18	4
Income before income taxes									786	740	829
Provision for income taxes	37		15			28			166	216	401
Equity in net earnings of affiliates									5	4	0
Net income									625	528	428
Net income attributable to noncontrolling interests									(115)	(89)	(105)
Net income attributable to Crown Holdings	$ 87	$ 183	$ 137	$ 103	$ 53	$ 164	$ 132	$ 90	$ 510	$ 439	$ 323
Earnings per common share attributable to Crown Holdings:
Basic (in dollars per share)	$ 0.65	$ 1.37	$ 1.02	$ 0.77	$ 0.40	$ 1.23	$ 0.99	$ 0.67	$ 3.81	$ 3.28	$ 2.39
Diluted (in dollars per share)	$ 0.64	$ 1.36	$ 1.02	$ 0.77	$ 0.40	$ 1.23	$ 0.99	$ 0.67	$ 3.78	$ 3.28	$ 2.38