Condensed Combining Financial Information - Condensed Combining Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Cash and cash equivalents	$ 342			$ 607
Receivables, net	1,830			1,602
Inventories	1,837			1,690
Prepaid expenses and other current assets	205			180
Total current assets	4,214			4,079
Goodwill	4,448			4,442
Intangible assets, net	2,106			2,193
Property, plant and equipment, net	3,761			3,745
Operating lease right-of-use assets	209		$ 220	0
Other non-current assets	827			803
Total	15,565			15,262
Short-term debt	135			89
Current maturities of long-term debt	88			81
Current portion of operating lease liabilities	47			0
Accounts payable	2,355			2,732
Accrued liabilities	983			1,011
Total current liabilities	3,608			3,913
Long-term debt, excluding current maturities	8,549			8,493
Non-current portion of operating lease liabilities	165			0
Postretirement and pension liabilities	663			683
Other non-current liabilities	880			887
Commitments and contingent liabilities
Noncontrolling interests	406			349
Crown Holdings shareholders’ equity/(deficit)	1,294			937
Total equity/(deficit)	1,700	$ 1,502		1,286	$ 1,137	$ 1,112	$ 923
Total	15,565			15,262
Crown Cork & Seal Company Inc.
Cash and cash equivalents	342			607
Receivables, net	1,830			1,602
Inventories	1,837			1,690
Prepaid expenses and other current assets	205			180
Total current assets	4,214			4,079
Goodwill	4,448			4,442
Intangible assets, net	2,106			2,193
Property, plant and equipment, net	3,761			3,745
Operating lease right-of-use assets	209
Other non-current assets	827			803
Total	15,565			15,262
Short-term debt	135			89
Current maturities of long-term debt	88			81
Current portion of operating lease liabilities	47
Accounts payable	2,355			2,732
Accrued liabilities	983			1,011
Total current liabilities	3,608			3,913
Long-term debt, excluding current maturities	8,549			8,493
Long-term intercompany debt	0
Non-current portion of operating lease liabilities	165
Postretirement and pension liabilities	663			683
Other non-current liabilities	880			887
Commitments and contingent liabilities
Noncontrolling interests	406			349
Crown Holdings shareholders’ equity/(deficit)	1,294			937
Total equity/(deficit)	1,700			1,286
Total	15,565			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	3,799			3,458
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	3,800			3,459
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	11			14
Total current liabilities	11			14
Long-term debt, excluding current maturities
Long-term intercompany debt	2,495			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)	1,294			937
Total equity/(deficit)	1,294			937
Total	3,800			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	4,072			3,764
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets	125			156
Total	4,206			3,930
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	33			30
Total current liabilities	33			30
Long-term debt, excluding current maturities	388			388
Long-term intercompany debt	1,049			1,053
Non-current portion of operating lease liabilities
Postretirement and pension liabilities
Other non-current liabilities	323			325
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	2,413			2,134
Total equity/(deficit)	2,413			2,134
Total	4,206			3,930
Crown Cork & Seal Company Inc. | Non- Guarantors
Cash and cash equivalents	342			607
Receivables, net	1,821			1,593
Inventories	1,837			1,690
Prepaid expenses and other current assets	204			178
Total current assets	4,204			4,068
Intercompany debt receivables	3,544			3,561
Investments
Goodwill	4,448			4,442
Intangible assets, net	2,106			2,193
Property, plant and equipment, net	3,761			3,745
Operating lease right-of-use assets	209
Other non-current assets	702			647
Total	18,974			18,656
Short-term debt	135			89
Current maturities of long-term debt	88			81
Current portion of operating lease liabilities	47
Accounts payable	2,355			2,732
Accrued liabilities	939			967
Total current liabilities	3,564			3,869
Long-term debt, excluding current maturities	8,161			8,105
Long-term intercompany debt
Non-current portion of operating lease liabilities	165
Postretirement and pension liabilities	663			683
Other non-current liabilities	557			562
Commitments and contingent liabilities
Noncontrolling interests	406			349
Crown Holdings shareholders’ equity/(deficit)	5,458			5,088
Total equity/(deficit)	5,864			5,437
Total	18,974			18,656
Crown Americas, LLC
Cash and cash equivalents	342			607
Receivables, net	1,830			1,602
Intercompany receivables				0
Inventories	1,837			1,690
Prepaid expenses and other current assets	205			180
Total current assets	4,214			4,079
Intercompany debt receivables				0
Investments				0
Goodwill	4,448			4,442
Intangible assets, net	2,106			2,193
Property, plant and equipment, net	3,761			3,745
Operating lease right-of-use assets	209
Other non-current assets	827			803
Total	15,565			15,262
Short-term debt	135			89
Current maturities of long-term debt	88			81
Current portion of operating lease liabilities	47
Accounts payable	2,355			2,732
Accrued liabilities	983			1,011
Total current liabilities	3,608			3,913
Long-term debt, excluding current maturities	8,549			8,493
Long-term intercompany debt				0
Non-current portion of operating lease liabilities	165
Postretirement and pension liabilities	663			683
Other non-current liabilities	880			887
Commitments and contingent liabilities
Noncontrolling interests	406			349
Crown Holdings shareholders’ equity/(deficit)	1,294			937
Total equity/(deficit)	1,700			1,286
Total	15,565			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	3,799			3,458
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	3,800			3,459
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	11			14
Intercompany payables
Total current liabilities	11			14
Long-term debt, excluding current maturities
Long-term intercompany debt	2,495			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)	1,294			937
Total equity/(deficit)	1,294			937
Total	3,800			3,459
Crown Americas, LLC | Issuer
Cash and cash equivalents	15			117
Receivables, net	12			4
Intercompany receivables
Inventories
Prepaid expenses and other current assets	1			1
Total current assets	28			122
Intercompany debt receivables	2,916			2,577
Investments	2,799			2,657
Goodwill
Intangible assets, net
Property, plant and equipment, net	1			1
Operating lease right-of-use assets	4
Other non-current assets	42			29
Total	5,790			5,386
Short-term debt
Current maturities of long-term debt	43			37
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities	49			49
Intercompany payables
Total current liabilities	92			86
Long-term debt, excluding current maturities	3,268			2,999
Long-term intercompany debt	750			746
Non-current portion of operating lease liabilities	4
Postretirement and pension liabilities
Other non-current liabilities	6
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	1,670			1,555
Total equity/(deficit)	1,670			1,555
Total	5,790			5,386
Crown Americas, LLC | Guarantors
Cash and cash equivalents	2			19
Receivables, net	195			182
Intercompany receivables	30			33
Inventories	532			485
Prepaid expenses and other current assets	20			17
Total current assets	779			736
Intercompany debt receivables	3,407			3,449
Investments	1,449			1,248
Goodwill	1,182			1,178
Intangible assets, net	862			901
Property, plant and equipment, net	699			693
Operating lease right-of-use assets	72
Other non-current assets	166			192
Total	8,616			8,397
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities	17
Accounts payable	638			725
Accrued liabilities	123			144
Intercompany payables	23			13
Total current liabilities	801			882
Long-term debt, excluding current maturities	1,005			1,274
Long-term intercompany debt	2,985			2,700
Non-current portion of operating lease liabilities	56
Postretirement and pension liabilities	405			432
Other non-current liabilities	316			332
Commitments and contingent liabilities
Noncontrolling interests
Crown Holdings shareholders’ equity/(deficit)	3,048			2,777
Total equity/(deficit)	3,048			2,777
Total	8,616			8,397
Crown Americas, LLC | Non- Guarantors
Cash and cash equivalents	325			471
Receivables, net	1,623			1,416
Intercompany receivables	23			13
Inventories	1,305			1,205
Prepaid expenses and other current assets	183			161
Total current assets	3,459			3,266
Intercompany debt receivables	16			12
Investments
Goodwill	3,266			3,264
Intangible assets, net	1,244			1,292
Property, plant and equipment, net	3,061			3,051
Operating lease right-of-use assets	133
Other non-current assets	619			582
Total	11,798			11,467
Short-term debt	135			89
Current maturities of long-term debt	45			44
Current portion of operating lease liabilities	30
Accounts payable	1,717			2,007
Accrued liabilities	800			804
Intercompany payables	30			33
Total current liabilities	2,757			2,977
Long-term debt, excluding current maturities	4,276			4,220
Long-term intercompany debt	109			84
Non-current portion of operating lease liabilities	105
Postretirement and pension liabilities	258			251
Other non-current liabilities	558			555
Commitments and contingent liabilities
Noncontrolling interests	406			349
Crown Holdings shareholders’ equity/(deficit)	3,329			3,031
Total equity/(deficit)	3,735			3,380
Total	11,798			11,467
Eliminations | Crown Cork & Seal Company Inc.
Cash and cash equivalents
Receivables, net
Inventories
Prepaid expenses and other current assets
Intercompany debt receivables	(3,544)			(3,561)
Investments	(7,871)			(7,222)
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	(11,415)			(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	(3,544)			(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)	(7,871)			(7,222)
Total equity/(deficit)	(7,871)			(7,222)
Total	(11,415)			(10,783)
Eliminations | Crown Americas, LLC
Cash and cash equivalents
Receivables, net
Intercompany receivables	(53)			(46)
Inventories
Prepaid expenses and other current assets
Total current assets	(53)			(46)
Intercompany debt receivables	(6,339)			(6,038)
Investments	(8,047)			(7,363)
Goodwill
Intangible assets, net
Property, plant and equipment, net
Operating lease right-of-use assets
Other non-current assets
Total	(14,439)			(13,447)
Short-term debt
Current maturities of long-term debt
Current portion of operating lease liabilities
Accounts payable
Accrued liabilities
Intercompany payables	(53)			(46)
Total current liabilities	(53)			(46)
Long-term debt, excluding current maturities
Long-term intercompany debt	(6,339)			(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)	(8,047)			(7,363)
Total equity/(deficit)	(8,047)			(7,363)
Total	$ (14,439)			$ (13,447)