XML 81 R65.htm IDEA: XBRL DOCUMENT
v3.25.2

Pension and Other Postretirement Benefits - Narrative (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2025 USD ($)
Retirement Benefits [Abstract] |
Proceeds from repayment of pension contributions | $ 21

X
- Definition Proceeds From Repayment Of Pension Contributions + References No definition available. + Details
Name: | cck_ProceedsFromRepaymentOfPensionContributions
Namespace Prefix: | cck_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration