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Fair Value Measurements, Derivative Instruments and Hedging Activities - Additional Information (Detail) | 3 Months Ended |  |  |  |  | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2013 USD ($) | Feb. 29, 2012 USD ($) | Nov. 30, 2012 USD ($) | Feb. 28, 2013 Foreign Currency Intercompany Payable USD ($) | Nov. 30, 2012 Foreign Currency Intercompany Payable USD ($) | Feb. 28, 2013 Minimum USD ($) | Jul. 31, 2012 Cash Flow Hedging | Jul. 31, 2012 Cash Flow Hedging | Jun. 30, 2012 Cash Flow Hedging | Jul. 31, 2012 Cash Flow Hedging Minimum USD ($) | Jun. 30, 2012 Cash Flow Hedging Minimum USD ($) | Jul. 31, 2012 Cash Flow Hedging Maximum USD ($) | Jun. 30, 2012 Cash Flow Hedging Maximum USD ($)
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated goodwill impairment charges | $ 153,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset, cash collateral netting threshold, fair value |  |  |  |  |  | 100,000,000 |  |  |  |  |  |  |
Designated debt and other obligations as non-derivative hedges of net investments in foreign operations |  |  |  | 1,700,000,000 | 1,800,000,000 |  |  |  |  |  |  |  |
Cumulative foreign currency transaction gains and (losses) included in the cumulative translation adjustment component of AOCI | 332,000,000 |  | 243,000,000 |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment | 89,000,000 | (60,000,000) |  |  |  |  |  |  |  |  |  |  |
Maturity period for foreign currency zero cost collars |  |  |  |  |  |  | 2015-02 | 2015-02 | 2013-05 |  |  |  |
Weighted-Average ceiling rate |  |  |  |  |  |  | 0.83 | 0.83 | 1.30 |  |  |  |
Currency exchange risk hedged |  |  |  |  |  |  |  |  |  | 257,000,000 | 512,000,000 | 277,000,000 | 560,000,000
Weighted-Average floor rate |  |  |  |  |  |  | 0.77 | 0.77 | 1.19 |  |  |  |
Foreign currency contract commitments | $ 1,100,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt bore fixed interest rates, including the effect of interest rate swaps | 63.00% |  | 61.00% |  |  |  |  |  |  |  |  |  |
Percentage of debt bore floating interest rates, including the effect of interest rate swaps | 37.00% |  | 39.00% |  |  |  |  |  |  |  |  |  |

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- Definition This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15A -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 107 -Paragraph 15C -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 107 -Paragraph 15D -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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