Condensed Combining Financial Information - Narrative (Details) $ in Millions	9 Months Ended
Sep. 30, 2018 USD ($)
Crown Cork & Seal Company Inc \| U.S. dollar at 7.375% due 2026
Outstanding senior notes	$ 350
Debt instrument stated percentage	7.375%
Crown Cork & Seal Company Inc \| U.S. dollar at 7.50% due 2096
Outstanding senior notes	$ 40
Debt instrument stated percentage	7.50%
Crown Americas, LLC \| U. S. dollar at 4.50% due 2023
Outstanding senior notes	$ 1,000
Debt instrument stated percentage	4.50%
Crown Americas, LLC \| U.S. dollar at 4.25% due 2026
Outstanding senior notes	$ 400
Debt instrument stated percentage	4.25%
Crown Americas, LLC \| U.S. dollar at 4.75% due 2026
Outstanding senior notes	$ 875
Debt instrument stated percentage	4.75%
Guarantors \| Crown Americas, LLC
Ownership percentage	100.00%
Issuer [Member] \| Crown Cork & Seal Company Inc
Ownership percentage	100.00%
Issuer [Member] \| Crown Americas, LLC
Ownership percentage	100.00%

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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