Condensed Combining Financial Information (Narrative) (Details) $ in Millions	9 Months Ended
Sep. 30, 2017 USD ($)
Crown Cork & Seal Company Inc \| U S Dollar 7.375% Due 2026
Outstanding senior notes	$ 350
Debt instrument stated percentage	7.375%
Crown Cork & Seal Company Inc \| U S Dollar 7.50% Due 2096
Outstanding senior notes	$ 45
Debt instrument stated percentage	7.50%
Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II \| U S Dollar 4.50% Due 2023
Outstanding senior notes	$ 1,000
Debt instrument stated percentage	4.50%
Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II \| U S Dollar 4.25% Due 2026
Outstanding senior notes	$ 400
Debt instrument stated percentage	4.25%
Guarantor Subsidiaries \| Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II
Ownership percentage	100.00%
Issuer \| Crown Cork & Seal Company Inc
Ownership percentage	100.00%
Issuer \| Crown Americas, LLC, Crown Americas Capital Corp. And Crown Americas Capital Corp. II
Ownership percentage	100.00%

Contractual interest rate for funds borrowed, under the debt agreement.

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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

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

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