Condensed Combining Financial Information - Condensed Combining Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Cash and cash equivalents	$ 339				$ 607
Receivables, net	1,795				1,602
Inventories	1,740				1,690
Prepaid expenses and other current assets	208				180
Total current assets	4,082				4,079
Goodwill	4,342				4,442
Intangible assets, net	2,025				2,193
Property, plant and equipment, net	3,739				3,745
Operating lease right-of-use assets	200			$ 220
Other non-current assets	949				803
Total	15,337				15,262
Short-term debt	134				89
Current maturities of long-term debt	87				81
Current portion of operating lease liabilities	46				0
Accounts payable	2,409				2,732
Accrued liabilities	956				1,011
Total current liabilities	3,632				3,913
Long-term debt, excluding current maturities	8,042				8,493
Non-current portion of operating lease liabilities	158
Postretirement and pension liabilities	620				683
Other non-current liabilities	864				887
Commitments and contingent liabilities
Noncontrolling interests	402				349
Crown Holdings shareholders’ equity/(deficit)	1,619				937
Total equity/(deficit)	2,021	$ 1,700	$ 1,502		1,286	$ 1,310	$ 1,137	$ 1,112	$ 923
Total	15,337				15,262
Crown Cork & Seal Company Inc.
Cash and cash equivalents	339				607
Receivables, net	1,795				1,602
Inventories	1,740				1,690
Prepaid expenses and other current assets	208				180
Total current assets	4,082				4,079
Goodwill	4,342				4,442
Intangible assets, net	2,025				2,193
Property, plant and equipment, net	3,739				3,745
Operating lease right-of-use assets	200
Other non-current assets	949				803
Total	15,337				15,262
Short-term debt	134				89
Current maturities of long-term debt	87				81
Current portion of operating lease liabilities	46
Accounts payable	2,409				2,732
Accrued liabilities	956				1,011
Total current liabilities	3,632				3,913
Long-term debt, excluding current maturities	8,042				8,493
Long-term intercompany debt	0
Non-current portion of operating lease liabilities	158
Postretirement and pension liabilities	620				683
Other non-current liabilities	864				887
Commitments and contingent liabilities
Noncontrolling interests	402				349
Crown Holdings shareholders’ equity/(deficit)	1,619				937
Total equity/(deficit)	2,021				1,286
Total	15,337				15,262
Crown Cork & Seal Company Inc. | Parent
Cash and cash equivalents
Receivables, net
Inventories
Prepaid expenses and other current assets	1				1
Total current assets	1				1
Intercompany debt receivables
Investments	4,117				3,458
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	4,118				3,459
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	18				14
Total current liabilities	18				14
Long-term debt, excluding current maturities
Long-term intercompany debt	2,481				2,508
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	1,619				937
Total equity/(deficit)	1,619				937
Total	4,118				3,459
Crown Cork & Seal Company Inc. | Issuer
Cash and cash equivalents
Receivables, net	9				9
Inventories
Prepaid expenses and other current assets					1
Total current assets	9				10
Intercompany debt receivables
Investments	4,413				3,764
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets	92				156
Total	4,514				3,930
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	34				30
Total current liabilities	34				30
Long-term debt, excluding current maturities	388				388
Long-term intercompany debt	1,028				1,053
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities	320				325
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	2,744				2,134
Total equity/(deficit)	2,744				2,134
Total	4,514				3,930
Crown Cork & Seal Company Inc. | Non- Guarantors
Cash and cash equivalents	339				607
Receivables, net	1,786				1,593
Inventories	1,740				1,690
Prepaid expenses and other current assets	207				178
Total current assets	4,072				4,068
Intercompany debt receivables	3,509				3,561
Investments
Goodwill	4,342				4,442
Intangible assets, net	2,025				2,193
Property, plant and equipment, net	3,739				3,745
Operating lease right-of-use assets	200
Other non-current assets	857				647
Total	18,744				18,656
Short-term debt	134				89
Current maturities of long-term debt	87				81
Current portion of operating lease liabilities	46
Accounts payable	2,409				2,732
Accrued liabilities	904				967
Total current liabilities	3,580				3,869
Long-term debt, excluding current maturities	7,654				8,105
Long-term intercompany debt
Non-current portion of operating lease liabilities	158
Postretirement and pension liabilities	620				683
Other non-current liabilities	544				562
Commitments and contingent liabilities
Noncontrolling interests	402				349
Crown Holdings shareholders’ equity/(deficit)	5,786				5,088
Total equity/(deficit)	6,188				5,437
Total	18,744				18,656
Crown Americas, LLC
Cash and cash equivalents	339				607
Receivables, net	1,795				1,602
Intercompany receivables					0
Inventories	1,740				1,690
Prepaid expenses and other current assets	208				180
Total current assets	4,082				4,079
Intercompany debt receivables					0
Investments					0
Goodwill	4,342				4,442
Intangible assets, net	2,025				2,193
Property, plant and equipment, net	3,739				3,745
Operating lease right-of-use assets	200
Other non-current assets	949				803
Total	15,337				15,262
Short-term debt	134				89
Current maturities of long-term debt	87				81
Current portion of operating lease liabilities	46
Accounts payable	2,409				2,732
Accrued liabilities	956				1,011
Total current liabilities	3,632				3,913
Long-term debt, excluding current maturities	8,042				8,493
Long-term intercompany debt					0
Non-current portion of operating lease liabilities	158
Postretirement and pension liabilities	620				683
Other non-current liabilities	864				887
Commitments and contingent liabilities
Noncontrolling interests	402				349
Crown Holdings shareholders’ equity/(deficit)	1,619				937
Total equity/(deficit)	2,021				1,286
Total	15,337				15,262
Crown Americas, LLC | Parent
Cash and cash equivalents
Receivables, net
Intercompany receivables
Inventories
Prepaid expenses and other current assets	1				1
Total current assets	1				1
Intercompany debt receivables
Investments	4,117				3,458
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	4,118				3,459
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	18				14
Intercompany payables
Total current liabilities	18				14
Long-term debt, excluding current maturities
Long-term intercompany debt	2,481				2,508
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	1,619				937
Total equity/(deficit)	1,619				937
Total	4,118				3,459
Crown Americas, LLC | Issuer
Cash and cash equivalents	21				117
Receivables, net	5				4
Intercompany receivables
Inventories
Prepaid expenses and other current assets	1				1
Total current assets	27				122
Intercompany debt receivables	2,856				2,577
Investments	2,891				2,657
Goodwill
Intangible assets, net
Property, plant and equipment, net	1				1
Operating lease right-of-use assets	4
Other non-current assets	86				29
Total	5,865				5,386
Short-term debt
Current maturities of long-term debt	43				37
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	22				49
Intercompany payables
Total current liabilities	65				86
Long-term debt, excluding current maturities	3,015				2,999
Long-term intercompany debt	990				746
Non-current portion of operating lease liabilities	3
Postretirement and pension liabilities
Other non-current liabilities
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	1,792				1,555
Total equity/(deficit)	1,792				1,555
Total	5,865				5,386
Crown Americas, LLC | Guarantors
Cash and cash equivalents	11				19
Receivables, net	205				182
Intercompany receivables	27				33
Inventories	501				485
Prepaid expenses and other current assets	19				17
Total current assets	763				736
Intercompany debt receivables	3,433				3,449
Investments	1,695				1,248
Goodwill	1,186				1,178
Intangible assets, net	850				901
Property, plant and equipment, net	708				693
Operating lease right-of-use assets	70
Other non-current assets	138				192
Total	8,843				8,397
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities	17
Accounts payable	663				725
Accrued liabilities	130				144
Intercompany payables	13				13
Total current liabilities	823				882
Long-term debt, excluding current maturities	1,004				1,274
Long-term intercompany debt	2,920				2,700
Non-current portion of operating lease liabilities	56
Postretirement and pension liabilities	351				432
Other non-current liabilities	312				332
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	3,377				2,777
Total equity/(deficit)	3,377				2,777
Total	8,843				8,397
Crown Americas, LLC | Non- Guarantors
Cash and cash equivalents	307				471
Receivables, net	1,585				1,416
Intercompany receivables	13				13
Inventories	1,239				1,205
Prepaid expenses and other current assets	187				161
Total current assets	3,331				3,266
Intercompany debt receivables	246				12
Investments
Goodwill	3,156				3,264
Intangible assets, net	1,175				1,292
Property, plant and equipment, net	3,030				3,051
Operating lease right-of-use assets	126
Other non-current assets	725				582
Total	11,789				11,467
Short-term debt	134				89
Current maturities of long-term debt	44				44
Current portion of operating lease liabilities	29
Accounts payable	1,746				2,007
Accrued liabilities	786				804
Intercompany payables	27				33
Total current liabilities	2,766				2,977
Long-term debt, excluding current maturities	4,023				4,220
Long-term intercompany debt	144				84
Non-current portion of operating lease liabilities	99
Postretirement and pension liabilities	269				251
Other non-current liabilities	552				555
Commitments and contingent liabilities
Noncontrolling interests	402				349
Crown Holdings shareholders’ equity/(deficit)	3,534				3,031
Total equity/(deficit)	3,936				3,380
Total	11,789				11,467
Eliminations | Crown Cork & Seal Company Inc.
Cash and cash equivalents
Receivables, net
Inventories
Prepaid expenses and other current assets
Intercompany debt receivables	(3,509)				(3,561)
Investments	(8,530)				(7,222)
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	(12,039)				(10,783)
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities
Long-term debt, excluding current maturities
Long-term intercompany debt	(3,509)				(3,561)
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	(8,530)				(7,222)
Total equity/(deficit)	(8,530)				(7,222)
Total	(12,039)				(10,783)
Eliminations | Crown Americas, LLC
Cash and cash equivalents
Receivables, net
Intercompany receivables	(40)				(46)
Inventories
Prepaid expenses and other current assets
Total current assets	(40)				(46)
Intercompany debt receivables	(6,535)				(6,038)
Investments	(8,703)				(7,363)
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	(15,278)				(13,447)
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities
Intercompany payables	(40)				(46)
Total current liabilities	(40)				(46)
Long-term debt, excluding current maturities
Long-term intercompany debt	(6,535)				(6,038)
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	(8,703)				(7,363)
Total equity/(deficit)	(8,703)				(7,363)
Total	$ (15,278)				$ (13,447)