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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Estimated Fair Value and Basis of Valuation of Financial Instrument Assets And Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions | Feb. 28, 2018 | Nov. 30, 2017 | Feb. 28, 2017 | Nov. 30, 2016
--- | --- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents | $ 453 | $ 395 | $ 437 | $ 603
Assets |  |  |  |
Derivative financial instruments | 17 | 15 |  |
Liabilities |  |  |  |
Derivative financial instruments | 130 | 161 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 |  |  |  |
Assets |  |  |  |
Restricted cash | 29 | 26 |  |
Total | 488 | 518 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Money market funds |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 453 | 395 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Marketable securities held in rabbi trusts |  |  |  |
Assets |  |  |  |
Investments | 6 | 97 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 |  |  |  |
Assets |  |  |  |
Total | 17 | 15 |  |
Liabilities |  |  |  |
Total | 130 | 161 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments |  |  |  |
Assets |  |  |  |
Derivative financial instruments | 17 | 15 |  |
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments |  |  |  |
Liabilities |  |  |  |
Derivative financial instruments | $ 130 | $ 161 |  |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3044-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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