Condensed Combining Financial Information (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Long-term Debt, Gross	$ 5,314	$ 4,931
Crown Cork & Seal Company Inc [Member] \| U S Dollar 7.375% Due 2026 Member
Senior Notes, Noncurrent	$ 350
Debt instrument stated percentage	7.375%
Crown Cork & Seal Company Inc [Member] \| U S Dollar 7.50% Due 2096 Member
Senior Notes, Noncurrent	$ 45
Debt instrument stated percentage	7.50%
Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II [Member] \| U S Dollar 4.50% Due 2023 [Member]
Senior Notes, Noncurrent	$ 1,000
Debt instrument stated percentage	4.50%
Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II [Member] \| U S Dollar 4.25% Due 2026 [Member]
Senior Notes, Noncurrent	$ 400
Debt instrument stated percentage	4.25%
Issuer [Member] \| Crown Cork & Seal Company Inc [Member]
Ownership percentage	100.00%
Issuer [Member] \| Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II [Member]
Ownership percentage	100.00%
Guarantor Subsidiaries [Member] \| Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II [Member]
Ownership percentage	100.00%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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