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Reconciliation of Changes in Carrying Amounts of Intangible Assets Not Subject to Amortization, Which Represents Trademarks (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 31, 2012 | Aug. 31, 2012 North America Cruise Brands | Nov. 30, 2011 North America Cruise Brands | Aug. 31, 2012 EAA Cruise Brands
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |
Balance at November 30, 2011 | $ 1,313 |  | $ 927 | $ 927 | $ 386 |
Ibero trademarks impairment charge | (20) | [1] |  |  | (20) | [1]
Foreign currency translation adjustment | (1) |  |  |  | (1) |
Balance at August 31, 2012 | $ 1,292 |  | $ 927 | $ 927 | $ 365 |
[1] | At February 29, 2012, we also performed an interim impairment test of Ibero's trademarks, which resulted in a $20 million impairment charge, based on the reduction of revenues primarily as a result of slower than anticipated Ibero capacity growth and a lower estimated royalty rate. At August 31, 2012, Ibero's remaining trademark carrying values are not significant.

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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 46 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Carrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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