Divestitures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (loss) / income from discontinued operations	$ (52)	$ 156	$ 125
Net income from discontinued operations attributable to noncontrolling interests	1	1	2
Net (loss) / income from discontinued operations attributable to Crown Holdings	(53)	155	123
Total current assets held for sale	97	743
Total non-current assets held for sale	0	2,179
Total current liabilities held for sale	14	981
Total non-current liabilities held for sale	0	199
Capital expenditures	787	554	391
European Tinplate | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	1,585	2,183	2,106
Cost of products sold, excluding depreciation and amortization	1,301	1,823	1,774
Depreciation and amortization	16	59	59
Selling and administrative expense	60	81	75
Restructuring and other	2	4	4
Goodwill impairment	0	0	25
Other pension and postretirement	1	2	3
Interest expense	6	10	11
Interest income	0	0	(2)
Foreign exchange	0	3	2
Loss on sale of discontinued businesses	101	0	0
Transaction costs	34	0	0
Income from discontinued operations before tax	64	201	155
Provision for income taxes	116	45	30
Net (loss) / income from discontinued operations	(52)	156	125
Net income from discontinued operations attributable to noncontrolling interests	1	1	2
Net (loss) / income from discontinued operations attributable to Crown Holdings	(53)	155	123
Receivables, net	281
Inventories	410
Prepaid expenses and other current assets	30
Total current assets held for sale	721
Goodwill	1,447
Intangible assets, net	125
Property, plant and equipment, net	546
Operating lease right-of-use assets, net	43
Other non-current assets	17
Total non-current assets held for sale	2,178
Short-term debt	17
Current portion of operating lease liabilities	12
Accounts payable	725
Accrued liabilities	227
Total current liabilities held for sale	981
Postretirement and pension liabilities	77
Non-current portion of operating lease liabilities	32
Other non-current liabilities	90
Total non-current liabilities held for sale	199
Capital expenditures	$ 29	$ 33	$ 41