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Estimated Fair Values of Derivative Financial Instruments and Location on Consolidated Balance Sheets (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified |  |  | 1 Months Ended |  |  |  | 3 Months Ended |  | 3 Months Ended
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Feb. 28, 2013 Net investment hedges | Nov. 30, 2012 Net investment hedges | Jul. 31, 2012 Cash Flow Hedging | Jun. 30, 2012 Cash Flow Hedging | Feb. 28, 2013 Cash Flow Hedging Interest rate swaps | Nov. 30, 2012 Cash Flow Hedging Interest rate swaps | Feb. 28, 2013 Fair Value Hedging Interest rate swaps | Feb. 28, 2013 Maximum Cash Flow Hedging Interest rate swaps | Feb. 28, 2013 Maximum Fair Value Hedging Interest rate swaps | Feb. 28, 2013 Maturing in July Twenty Seventeen Net investment hedges | Feb. 28, 2013 Maturing in July Twenty Seventeen Maximum Net investment hedges
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total foreign currency forwards designated as hedges of net investments in foreign operations for euro-denominated functional currency | $ 129 | $ 235 |  |  |  |  |  |  |  | $ 129 |
Maturity of foreign currency derivatives |  |  |  |  |  |  |  |  |  |  | 2017-07
Amount of interest rate swap agreements change, of EURIBOR-based floating rate debt to fixed rate debt, for euro interest rate swaps designated as cash flow hedges |  |  |  |  | 257 | 269 |  |  |  |  |
Maturity date of derivative instruments |  |  | 2015-02 | 2013-05 |  |  |  | 2022-02 | 2016-02 |  |
Amount of interest rate swap agreements change, of fixed rate debt to U.S. dollar LIBOR or GBP LIBOR-based floating rate debt, for both U.S. dollar and sterling interest rate swaps designated as fair value hedges |  |  |  |  |  |  | $ 500 |  |  |  |

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- Definition Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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