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Estimated Carrying and Fair Values of Financial Instrument Assets and (Liabilities) Not Measured at Fair Value on Recurring Basis (Detail) (Financial Instruments Not Measured at Fair Value on a Recurring Basis, USD $) In Millions, unless otherwise specified | Feb. 29, 2012 | Nov. 30, 2011
--- | --- | ---
Carrying Value |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Cash and cash equivalents | $ 305 | [1] | $ 358 | [1]
Long-term other assets | 97 | [2] | 96 | [2]
Carrying Value | Fixed Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt | (5,999) | [3] | (6,251) | [3]
Carrying Value | Floating Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt | (3,528) | [3] | (3,102) | [3]
Fair Value |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Cash and cash equivalents | 305 | [1] | 358 | [1]
Long-term other assets | 93 | [2] | 90 | [2]
Fair Value | Fixed Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt | (6,470) | [3] | (6,715) | [3]
Fair Value | Floating Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt | $ (3,471) | [3] | $ (3,057) | [3]
[1] | Cash and cash equivalents are comprised of cash on hand and time deposits and, due to their short maturities, the carrying values approximate their fair values.
[2] | At February 29, 2012 and November 30, 2011, substantially all of our long-term other assets were comprised of notes and other receivables. The fair values of notes and other receivables were based on estimated future cash flows discounted at appropriate market interest rates.
[3] | The net difference between the fair value of our fixed rate debt and its carrying value was due to the market interest rates in existence at February 29, 2012 and November 30, 2011 being lower than the fixed interest rates on these debt obligations, including the impact of changes in our credit ratings, if any. The net difference between the fair value of our floating rate debt and its carrying value was due to the market interest rates in existence at February 29, 2012 and November 30, 2011 being higher than the floating interest rates on these debt obligations, including the impact of changes in our credit ratings, if any. The fair values of our publicly-traded notes were based on their unadjusted quoted market prices in active markets. The fair values of our other debt were estimated based on appropriate market interest rates being applied to this debt.

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -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 95 -Paragraph 7 -Footnote 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8 -Footnote 2 -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 The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure. + References No definition available. + Details
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