XML 121 R107.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Pension and Other Postretirement Benefits (Schedule of Defined Benefit Plan Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total assets in fair value hierarchy | $ 3,579 | $ 3,612 |
Fair Value | 722 | 739 |
Total investments at fair value | 4,301 | 4,351 |
Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 187 | 184 |
Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 269 | 291 |
Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 23 | 21 |
Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 57 | 54 |
Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 186 | 189 |
Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 902 | 984 |
Level 1 [Member] | Cash and cash equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 98 | 172 |
Level 1 [Member] | Global large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 14 |  |
Level 1 [Member] | U.S. large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 66 | 69 |
Level 1 [Member] | Global mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 5 |  |
Level 1 [Member] | U.S. mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 262 | 249 |
Level 1 [Member] | Mutual funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 151 | 166 |
Level 1 [Member] | Mutual funds - U.S. equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 214 | 194 |
Level 1 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 92 | 134 |
Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 2,101 | 1,986 |
Level 2 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 498 | 472 |
Level 2 [Member] | Government issued debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 563 | 424 |
Level 2 [Member] | Corporate debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 136 | 157 |
Level 2 [Member] | Asset backed securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 13 | 19 |
Level 2 [Member] | Structured debt [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 695 | 697 |
Level 2 [Member] | Insurance contracts [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 16 | 17 |
Level 2 [Member] | Derivatives [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 98 | 84 |
Level 2 [Member] | Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 82 | 70 |
Level 2 [Member] | Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 46 |
Level 3 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 576 | 642 | $ 695
Level 3 [Member] | Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 132 | 116 |
Level 3 [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 207 | 225 | 252
Level 3 [Member] | Private equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 215 | 281 | 333
Level 3 [Member] | Real estate - direct [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 22 | 20 |
U.S. Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 1,156 | 1,190 | 1,300
Total assets in fair value hierarchy | 1,029 | 1,074 |
Fair Value | 126 | 115 |
Total investments at fair value | 1,155 | 1,189 |
Accrued income | 1 | 1 |
U.S. Plans [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 77 | 69 |
U.S. Plans [Member] | Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 26 | 25 |
U.S. Plans [Member] | Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 23 | 21 |
U.S. Plans [Member] | Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 0 | 0 |
U.S. Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 0 | 0 |
U.S. Plans [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 768 | 825 |
U.S. Plans [Member] | Level 1 [Member] | Cash and cash equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 15 | 40 |
U.S. Plans [Member] | Level 1 [Member] | Global large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 |  |
U.S. Plans [Member] | Level 1 [Member] | U.S. large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 60 | 62 |
U.S. Plans [Member] | Level 1 [Member] | Global mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 |  |
U.S. Plans [Member] | Level 1 [Member] | U.S. mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 238 | 231 |
U.S. Plans [Member] | Level 1 [Member] | Mutual funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 149 | 164 |
U.S. Plans [Member] | Level 1 [Member] | Mutual funds - U.S. equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 214 | 194 |
U.S. Plans [Member] | Level 1 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 92 | 134 |
U.S. Plans [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 137 | 131 |
U.S. Plans [Member] | Level 2 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 2 | 2 |
U.S. Plans [Member] | Level 2 [Member] | Government issued debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 49 | 43 |
U.S. Plans [Member] | Level 2 [Member] | Corporate debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 75 | 71 |
U.S. Plans [Member] | Level 2 [Member] | Asset backed securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 11 | 15 |
U.S. Plans [Member] | Level 2 [Member] | Structured debt [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
U.S. Plans [Member] | Level 2 [Member] | Insurance contracts [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
U.S. Plans [Member] | Level 2 [Member] | Derivatives [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
U.S. Plans [Member] | Level 2 [Member] | Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
U.S. Plans [Member] | Level 2 [Member] | Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
U.S. Plans [Member] | Level 3 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 124 | 118 |
U.S. Plans [Member] | Level 3 [Member] | Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 85 | 74 |
U.S. Plans [Member] | Level 3 [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 2 |
U.S. Plans [Member] | Level 3 [Member] | Private equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 22 | 26 |
U.S. Plans [Member] | Level 3 [Member] | Real estate - direct [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 17 | 16 |
Non-U.S. Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 3,152 | 3,169 | $ 3,410
Total assets in fair value hierarchy | 2,550 | 2,538 |
Fair Value | 596 | 624 |
Total investments at fair value | 3,146 | 3,162 |
Accrued income | 6 | 7 |
Non-U.S. Plans [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 110 | 115 |
Non-U.S. Plans [Member] | Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 243 | 266 |
Non-U.S. Plans [Member] | Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 0 | 0 |
Non-U.S. Plans [Member] | Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 57 | 54 |
Non-U.S. Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value | 186 | 189 |
Non-U.S. Plans [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 134 | 159 |
Non-U.S. Plans [Member] | Level 1 [Member] | Cash and cash equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 83 | 132 |
Non-U.S. Plans [Member] | Level 1 [Member] | Global large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 14 |  |
Non-U.S. Plans [Member] | Level 1 [Member] | U.S. large cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 6 | 7 |
Non-U.S. Plans [Member] | Level 1 [Member] | Global mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 5 |  |
Non-U.S. Plans [Member] | Level 1 [Member] | U.S. mid/small cap equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 24 | 18 |
Non-U.S. Plans [Member] | Level 1 [Member] | Mutual funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 2 | 2 |
Non-U.S. Plans [Member] | Level 1 [Member] | Mutual funds - U.S. equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
Non-U.S. Plans [Member] | Level 1 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 0 |
Non-U.S. Plans [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 1,964 | 1,855 |
Non-U.S. Plans [Member] | Level 2 [Member] | Fixed income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 496 | 470 |
Non-U.S. Plans [Member] | Level 2 [Member] | Government issued debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 514 | 381 |
Non-U.S. Plans [Member] | Level 2 [Member] | Corporate debt securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 61 | 86 |
Non-U.S. Plans [Member] | Level 2 [Member] | Asset backed securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 2 | 4 |
Non-U.S. Plans [Member] | Level 2 [Member] | Structured debt [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 695 | 697 |
Non-U.S. Plans [Member] | Level 2 [Member] | Insurance contracts [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 16 | 17 |
Non-U.S. Plans [Member] | Level 2 [Member] | Derivatives [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 98 | 84 |
Non-U.S. Plans [Member] | Level 2 [Member] | Investment funds - global equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 82 | 70 |
Non-U.S. Plans [Member] | Level 2 [Member] | Investment funds - emerging markets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 0 | 46 |
Non-U.S. Plans [Member] | Level 3 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 452 | 524 |
Non-U.S. Plans [Member] | Level 3 [Member] | Investment funds - real estate [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 47 | 42 |
Non-U.S. Plans [Member] | Level 3 [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 207 | 223 |
Non-U.S. Plans [Member] | Level 3 [Member] | Private equity [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | 193 | 255 |
Non-U.S. Plans [Member] | Level 3 [Member] | Real estate - direct [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan assets at fair value | $ 5 | $ 4 |

X
- Definition Defined Benefit Plan, Alternative Investments, Fair Value Of Plan Assets + References No definition available. + Details
Name: | cck_DefinedBenefitPlanAlternativeInvestmentsFairValueOfPlanAssets
Namespace Prefix: | cck_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Defined Benefit Plan Fair Value Of Plan Assets Excluding Accrued Income + References No definition available. + Details
Name: | cck_DefinedBenefitPlanFairValueOfPlanAssetsExcludingAccruedIncome
Namespace Prefix: | cck_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Defined Benefit Plan, Fair Value of Plan Assets, Excluding Net Asset Value Investments and Accrued Income + References No definition available. + Details
Name: | cck_DefinedBenefitPlanFairValueofPlanAssetsExcludingNetAssetValueInvestmentsandAccruedIncome
Namespace Prefix: | cck_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments. + 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(3)) -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(a)(4)) -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(10)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_AccruedInvestmentIncomeReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=64937038&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6749337 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6520858 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_InvestmentFundsGlobalEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_InvestmentFundsEmergingMarketsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_RealEstateFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_GlobalLargeCapEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_UnitedStatesLargeCapEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_GlobalMidSmallCapEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_UnitedStatesMidOrSmallCapEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_MutualFundsGlobalEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_MutualFundsUSEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_GovernmentIssuedDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_StructuredFinanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_InsuranceContractRightsAndObligationsFairValueOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DerivativeFinancialInstrumentsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cck_RealEstateDirectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_DomesticPensionPlansOfForeignEntityDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |