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Fair Value Measurements, Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended |  |  | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended |
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May 31, 2011 | May 31, 2010 | May 31, 2011 | May 31, 2010 | Nov. 30, 2010 | Jul. 31, 2010 Minimum | Jul. 31, 2010 Maximum | Jul. 31, 2010 Ibero Cruise | May 31, 2011 Foreign Exchange Contract Cash Flow Hedging | May 31, 2010 Foreign Exchange Contract Cash Flow Hedging | May 31, 2011 Foreign Exchange Contract Cash Flow Hedging | May 31, 2010 Foreign Exchange Contract Cash Flow Hedging | May 31, 2011 Foreign Exchange Contract Net investment hedges | May 31, 2010 Foreign Exchange Contract Net investment hedges | May 31, 2011 Foreign Exchange Contract Net investment hedges | May 31, 2010 Foreign Exchange Contract Net investment hedges | May 31, 2011 Euro And Sterling Debt And Other Obligations | Nov. 30, 2010 Euro And Sterling Debt And Other Obligations
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of weighted average cost of capital adjusted for risk |  |  |  |  |  | 10.00% | 12.00% |  |  |  |  |  |  |  |  |  |  |
Percentage by which Ibero's estimated fair value exceeds its carrying value |  |  |  |  |  |  |  | 24.00% |  |  |  |  |  |  |  |  |  |
Amount by which Ibero's estimated fair value exceeds its carrying value |  |  |  |  |  |  |  | $ 141 |  |  |  |  |  |  |  |  |  |
Goodwill | 3,424 |  | 3,424 |  | 3,320 |  |  | 152 |  |  |  |  |  |  |  |  |  |
Effective portions of derivative gains and (losses) recognized in other comprehensive income (loss) |  |  |  |  |  |  |  |  | 45 | (61) | 82 | (98) | (5) | 39 | (24) | 86 |  |
Designated debt and other obligations as nonderivative hedges of net investments in foreign operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,100 | 3,000
Debt and other obligations maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Nov. 30, 2021 |
Cumulative foreign currency transaction (losses) and gains included in cumulative translation adjustment component of AOCI | (36) |  | (36) |  | 183 |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment | $ (110) | $ 124 | $ (220) | $ 428 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newbuild passenger capacity under contract exposed to currency risk | 42.00% |  | 42.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newbuild passenger capacity under contract not exposed to currency risk | 58.00% |  | 58.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt bore fixed interest rates, including the effect of interest rate swaps | 66.00% |  | 66.00% |  | 69.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt bore floating interest rates, including the effect of interest rate swaps | 34.00% |  | 34.00% |  | 31.00% |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The difference between fair value and the carrying amount, net of any related valuation allowance, of separately recognized servicing assets existing at the date of initial application of fair value measurement, which is reported as a cumulative effect adjustment to retained earnings as of the beginning of the period. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 1 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph l -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -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. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 34 -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. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -Subparagraph d -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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