Shareholders' Equity - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended				0 Months Ended	6 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013 Carnival Corp	May 31, 2013 Carnival plc	Jun. 24, 2013 Subsequent Event Carnival Corp	May 31, 2013 Repurchase Agreements [Member] Carnival Corp
Stockholders Equity Note [Line Items]
Repurchase of Common Stock (in shares)			0.9			2.8
Share repurchased, Value	$ 138	$ 0	$ 103
Stock Repurchase Program, Remaining Authorized Repurchase Amount					975
Stock Issued During Period, Shares, Treasury Stock Reissued				0.9
Sales of treasury stock	$ 35	$ 0		$ 35