Reconciliation of Changes in Carrying Amounts of Goodwill (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended			6 Months Ended
Feb. 29, 2012	May 31, 2012	May 31, 2012 North America Cruise Brands	Nov. 30, 2011 North America Cruise Brands	May 31, 2012 EAA Cruise Brands
Goodwill [Line Items]
Balance at November 30, 2011	$ 3,322	$ 3,322	$ 1,898	$ 1,898	$ 1,424
Ibero goodwill impairment charge	(153)	(153)			(153)
Foreign currency translation adjustment		(34)			(34)
Balance at May 31, 2012		$ 3,135	$ 1,898	$ 1,898	$ 1,237

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

- Definition

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

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+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

+ Details