Condensed Combining Financial Information - Condensed Combining Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 2,755	$ 2,197
Cost of products sold, excluding depreciation and amortization	2,210	1,808
Depreciation and amortization	122	65
Selling and administrative expense	157	90
Restructuring and other	4	13
Income from operations	262	221
Loss from early extinguishment of debt	6	0
Other pension and postretirement	(18)	(17)
Foreign exchange	1	18
Income before income taxes	178	152
Provision for / (benefit from) income taxes	48	39
Equity earnings / (loss) in affiliates	1	0
Net income	131	113
Net income attributable to noncontrolling interests	(28)	(23)
Net income attributable to Crown Holdings	103	90
Total comprehensive income	216	174
Comprehensive income attributable to Crown Holdings	188	150
Crown Cork & Seal Company Inc.
Net sales	2,755	2,197
Cost of products sold, excluding depreciation and amortization	2,210	1,808
Depreciation and amortization	122	65
Selling and administrative expense	157	90
Restructuring and other	4	13
Income from operations	262	221
Loss from early extinguishment of debt	6
Other pension and postretirement	(18)	(17)
Net interest expense	95	68
Foreign exchange	1	18
Income before income taxes	178	152
Provision for / (benefit from) income taxes	48	39
Equity earnings / (loss) in affiliates	1	0
Net income	131	113
Net income attributable to noncontrolling interests	(28)	(23)
Net income attributable to Crown Holdings	103	90
Total comprehensive income	216	174
Comprehensive income attributable to noncontrolling interests	(28)	(24)
Comprehensive income attributable to Crown Holdings	188	150
Crown Cork & Seal Company Inc. | Parent
Net sales
Cost of products sold, excluding depreciation and amortization
Depreciation and amortization
Selling and administrative expense
Restructuring and other
Income from operations	0
Loss from early extinguishment of debt
Other pension and postretirement
Net interest expense
Foreign exchange
Income before income taxes	0
Provision for / (benefit from) income taxes
Equity earnings / (loss) in affiliates	103	90
Net income	103	90
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	103	90
Total comprehensive income	188	150
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	188	150
Crown Cork & Seal Company Inc. | Issuer
Net sales
Cost of products sold, excluding depreciation and amortization
Depreciation and amortization
Selling and administrative expense	1	2
Restructuring and other
Income from operations	(1)	(2)
Loss from early extinguishment of debt
Other pension and postretirement	2
Net interest expense	18	19
Foreign exchange
Income before income taxes	(21)	(21)
Provision for / (benefit from) income taxes	(4)	(4)
Equity earnings / (loss) in affiliates	104	95
Net income	87	78
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	87	78
Total comprehensive income	170	47
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	170	47
Crown Cork & Seal Company Inc. | Non- Guarantors
Net sales	2,755	2,197
Cost of products sold, excluding depreciation and amortization	2,210	1,808
Depreciation and amortization	122	65
Selling and administrative expense	156	88
Restructuring and other	4	13
Income from operations	263	223
Loss from early extinguishment of debt	6
Other pension and postretirement	(20)	(17)
Net interest expense	77	49
Foreign exchange	1	18
Income before income taxes	199	173
Provision for / (benefit from) income taxes	52	43
Equity earnings / (loss) in affiliates	1
Net income	148	130
Net income attributable to noncontrolling interests	(28)	(23)
Net income attributable to Crown Holdings	120	107
Total comprehensive income	233	191
Comprehensive income attributable to noncontrolling interests	(28)	(24)
Comprehensive income attributable to Crown Holdings	205	167
Crown Americas, LLC
Net sales	2,755	2,197
Cost of products sold, excluding depreciation and amortization	2,210	1,808
Depreciation and amortization	122	65
Selling and administrative expense	157	90
Restructuring and other	4	13
Income from operations	262	221
Loss from early extinguishment of debt	6
Other pension and postretirement	(18)	(17)
Net interest expense	95	68
Foreign exchange	1	18
Income before income taxes	178	152
Provision for / (benefit from) income taxes	48	39
Equity earnings / (loss) in affiliates	1	0
Net income	131	113
Net income attributable to noncontrolling interests	(28)	(23)
Net income attributable to Crown Holdings	103	90
Total comprehensive income	216	174
Comprehensive income attributable to noncontrolling interests	(28)	(24)
Comprehensive income attributable to Crown Holdings	188	150
Crown Americas, LLC | Parent
Net sales
Cost of products sold, excluding depreciation and amortization
Depreciation and amortization
Selling and administrative expense
Restructuring and other
Income from operations	0
Loss from early extinguishment of debt
Other pension and postretirement
Net interest expense
Technology royalty
Foreign exchange
Income before income taxes	0
Provision for / (benefit from) income taxes
Equity earnings / (loss) in affiliates	103	90
Net income	103	90
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	103	90
Total comprehensive income	188	150
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	188	150
Crown Americas, LLC | Issuer
Net sales
Cost of products sold, excluding depreciation and amortization
Depreciation and amortization
Selling and administrative expense	3	2
Restructuring and other		3
Income from operations	(3)	(5)
Loss from early extinguishment of debt	6
Other pension and postretirement
Net interest expense	19	23
Technology royalty
Foreign exchange	(34)	56
Income before income taxes	6	(84)
Provision for / (benefit from) income taxes	2	(20)
Equity earnings / (loss) in affiliates	63	56
Net income	67	(8)
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	67	(8)
Total comprehensive income	73	(7)
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	73	(7)
Crown Americas, LLC | Guarantors
Net sales	892	602
Cost of products sold, excluding depreciation and amortization	740	520
Depreciation and amortization	35	11
Selling and administrative expense	66	33
Restructuring and other		2
Income from operations	51	36
Loss from early extinguishment of debt
Other pension and postretirement	(5)	(5)
Net interest expense	33	21
Technology royalty	(9)	(11)
Foreign exchange		(1)
Income before income taxes	32	32
Provision for / (benefit from) income taxes	8	9
Equity earnings / (loss) in affiliates	62	55
Net income	86	78
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	86	78
Total comprehensive income	169	47
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	169	47
Crown Americas, LLC | Non- Guarantors
Net sales	1,979	1,692
Cost of products sold, excluding depreciation and amortization	1,586	1,385
Depreciation and amortization	87	54
Selling and administrative expense	88	55
Restructuring and other	4	8
Income from operations	214	190
Loss from early extinguishment of debt
Other pension and postretirement	(13)	(12)
Net interest expense	43	24
Technology royalty	9	11
Foreign exchange	1	19
Income before income taxes	174	148
Provision for / (benefit from) income taxes	46	37
Equity earnings / (loss) in affiliates
Net income	128	111
Net income attributable to noncontrolling interests	(28)	(23)
Net income attributable to Crown Holdings	100	88
Total comprehensive income	193	214
Comprehensive income attributable to noncontrolling interests	(28)	(24)
Comprehensive income attributable to Crown Holdings	165	190
Eliminations | Crown Cork & Seal Company Inc.
Net sales
Cost of products sold, excluding depreciation and amortization
Depreciation and amortization
Selling and administrative expense
Restructuring and other
Loss from early extinguishment of debt
Other pension and postretirement
Net interest expense
Foreign exchange
Income before income taxes
Provision for / (benefit from) income taxes
Equity earnings / (loss) in affiliates	(207)	(185)
Net income	(207)	(185)
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	(207)	(185)
Total comprehensive income	(375)	(214)
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	(375)	(214)
Eliminations | Crown Americas, LLC
Net sales	(116)	(97)
Cost of products sold, excluding depreciation and amortization	(116)	(97)
Depreciation and amortization
Selling and administrative expense
Restructuring and other
Loss from early extinguishment of debt
Other pension and postretirement
Net interest expense
Technology royalty
Foreign exchange	34	(56)
Income before income taxes	(34)	56
Provision for / (benefit from) income taxes	(8)	13
Equity earnings / (loss) in affiliates	(227)	(201)
Net income	(253)	(158)
Net income attributable to noncontrolling interests
Net income attributable to Crown Holdings	(253)	(158)
Total comprehensive income	(407)	(230)
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Crown Holdings	$ (407)	(230)
Issuer | Crown Cork & Seal Company Inc.
Other pension and postretirement