Facilities include provisions for letters of credit

No definition available.

Name:	cck_FacilitiesIncludeProvisionsForLettersOfCredit
Namespace Prefix:	cck_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ 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))
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

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+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash paid for interest during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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+ Details

Name:	us-gaap_InterestPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=cck_USDollaratLIBORPlusOnePointSevenFivePercentageDueTwoThousandEighteenMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cck_Euro2.625due2024Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cck_USDollarFourPointTwoFivePercentageDueTwoThousandAndTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cck_U.S.DollaratLIBORplus3.25due2022Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cck_Euro3.375due2025Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Debt (Narrative) (Details)	1 Months Ended				12 Months Ended
Debt (Narrative) (Details)	Sep. 30, 2016 USD ($)	Feb. 29, 2016 USD ($)	May 31, 2015 USD ($)	Feb. 28, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 EUR (€)	Sep. 30, 2016 EUR (€)	Dec. 31, 2015 EUR (€)	May 31, 2015 EUR (€)
Debt Instrument [Line Items]
Long-term debt, fair value					$ 5,043,000,000	$ 5,540,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year one					162,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year two					623,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year three					364,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year four					17,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year five					18,000,000
Cash payments for interest					217,000,000	249,000,000	$ 231,000,000
Proceeds from long-term debt					1,380,000,000	1,435,000,000	2,742,000,000
Debt issued					4,931,000,000	5,528,000,000
Loss from early extinguishments of debt					$ 37,000,000	9,000,000	$ 34,000,000
U.S. Dollar at LIBOR plus 1.75% due 2018 [Member] \| Empaque [Member]
Debt Instrument [Line Items]
Additional borrowings				$ 75,000,000
Euro 600 2.625% due 2024 [Member]
Debt Instrument [Line Items]
Loss from early extinguishments of debt	$ 7,000,000
U.S. Dollar 4.25% due 2026 [Member]
Debt Instrument [Line Items]
Loss from early extinguishments of debt	$ 3,000,000
U.S. Dollar at LIBOR plus 3.25% due 2022 [Member] \| Empaque [Member]
Debt Instrument [Line Items]
Additional borrowings				$ 675,000,000
Euro 600 3.375% due 2025 [Member]
Debt Instrument [Line Items]
Loss from early extinguishments of debt			$ 9,000,000
Senior Secured Borrowings [Member] \| U.S. Dollar at LIBOR plus 1.75% due 2018 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)					1.75%
Proceeds from long-term debt		$ 300,000,000
Debt issued					$ 654,000,000	831,000,000
Senior Secured Borrowings [Member] \| Euro at EURIBOR plus 1.75% due 2018 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)					1.75%
Debt issued					$ 61,000,000	723,000,000
Debt instrument, face amount \| €								€ 58,000,000		€ 665,000,000
Senior Notes and Debentures [Member] \| U.S. Dollar 6.25% due 2021 [Member]
Debt Instrument [Line Items]
Debt issued		$ 700,000,000			$ 0	700,000,000
Debt instrument stated percentage		6.25%			6.25%			6.25%
Loss from early extinguishments of debt					$ 27,000,000
Senior Notes and Debentures [Member] \| Euro 600 2.625% due 2024 [Member]
Debt Instrument [Line Items]
Debt issued					$ 631,000,000	0
Debt instrument stated percentage	2.625%				2.625%			2.625%	2.625%
Debt instrument, face amount \| €								€ 600,000,000	€ 600,000,000
Senior Notes and Debentures [Member] \| U.S. Dollar 4.25% due 2026 [Member]
Debt Instrument [Line Items]
Debt issued	$ 400,000,000				$ 400,000,000	0
Debt instrument stated percentage	4.25%				4.25%			4.25%	4.25%
Senior Notes and Debentures [Member] \| Euro 600 3.375% due 2025 [Member]
Debt Instrument [Line Items]
Debt issued					$ 631,000,000	$ 652,000,000					€ 600,000,000
Debt instrument stated percentage					3.375%			3.375%			3.375%
Debt instrument, face amount \| €								€ 600,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, available borrowing capacity					$ 1,158,000,000
Line of credit facility, maximum borrowing capacity					1,200,000,000
Outstanding letters of credit					$ 42,000,000
Basis spread on variable rate (as a percent)					1.50%
Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Provisions for letters of credit					$ 210,000,000
Basis spread on variable rate (as a percent)					2.00%