Other Assets	9 Months Ended
	Aug. 31, 2021
Other Assets [Abstract]
Other Assets	Other AssetsWe have a minority interest in the White Pass & Yukon Route (“White Pass”) that includes port, railroad and retail operations in Skagway, Alaska. As a result of the effects of COVID-19 on the 2021 Alaska season, we evaluated whether our investment in White Pass was other than temporarily impaired and performed an impairment assessment during the quarter ended February 28, 2021. As a result of our assessment, we recognized an impairment charge of $17 million for our investment in White Pass in other income (expense), net. As of August 31, 2021, our investment in White Pass was $76 million, consisting of $51 million in equity and a loan of $25 million. As of November 30, 2020, our investment in White Pass was $94 million, consisting of $75 million in equity and a loan of $19 million.We have a minority interest in CSSC Carnival Cruise Shipping Limited (“CSSC-Carnival”), a China-based cruise company which will operate its own fleet designed to serve the Chinese market. Our investment in CSSC-Carnival was $207 million as of August 31, 2021 and $140 million as of November 30, 2020. In December 2019, we sold to CSSC-Carnival a controlling interest in an entity with full ownership of two EA segment ships and recognized a related gain of $107 million, included in other operating expenses in our Consolidated Statements of Income (Loss). In April 2021, we sold to CSSC-Carnival our remaining $283 million investment in the minority interest of the same entity.