Taxation (Details) - ITALY	12 Months Ended
Nov. 30, 2019
Income Tax [Line Items]
Additional tax rate election period beginning 2025	10 years
Effective tax rate	4.80%

Effective Income Tax Rate, Continuing Operations, Foreign

No definition available.

Name:	ccl_EffectiveIncomeTaxRateContinuingOperationsForeign
Namespace Prefix:	ccl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration