This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Other Assets (Details) - CSSC-Carnival $ in Millions	1 Months Ended
Other Assets (Details) - CSSC-Carnival $ in Millions	Dec. 31, 2019 USD ($) cruise_ship	Aug. 31, 2020 USD ($)	Nov. 30, 2019 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment, amount		$ 135	$ 48
EA Segment
Schedule of Equity Method Investments [Line Items]
Number of cruise ships \| cruise_ship	2
Investment amount sold, gain	$ 107