Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
Feb. 28, 2015	Feb. 28, 2014
OPERATING ACTIVITIES
Net Income (Loss)	$ 49us-gaap_NetIncomeLoss	$ (20)us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	401us-gaap_DepreciationAndAmortization	405us-gaap_DepreciationAndAmortization
Losses on fuel derivatives, net	169	16
Share-based compensation	11us-gaap_ShareBasedCompensation	13us-gaap_ShareBasedCompensation
Other, net	4us-gaap_OtherNoncashIncomeExpense	5us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities
Receivables	(21)us-gaap_IncreaseDecreaseInReceivables	146us-gaap_IncreaseDecreaseInReceivables
Inventories	7us-gaap_IncreaseDecreaseInInventories	(9)us-gaap_IncreaseDecreaseInInventories
Insurance recoverables, prepaid expenses and other	20	114
Accounts payable	6	(88)
Claims reserves and accrued and other liabilities	(35)	(128)
Customer deposits	160	23
Net cash provided by operating activities	771	477
INVESTING ACTIVITIES
Additions to property and equipment	(942)	(353)
(Payments) receipts of fuel derivative settlements	(42)	1
Other, net	10	3
Net cash used in investing activities	(974)	(349)
FINANCING ACTIVITIES
Proceeds from short-term borrowings, net	210	344
Principal repayments of long-term debt	(336)us-gaap_RepaymentsOfOtherLongTermDebt	(312)us-gaap_RepaymentsOfOtherLongTermDebt
Proceeds from issuance of long-term debt	472	0
Dividends paid	(194)us-gaap_PaymentsOfDividends	(194)us-gaap_PaymentsOfDividends
Other, net	(1)	0
Net cash provided by (used in) financing activities	151	(162)
Effect of exchange rate changes on cash and cash equivalents	1	(7)
Net decrease in cash and cash equivalents	(51)	(41)
Cash and cash equivalents at beginning of period	331	462
Cash and cash equivalents at end of period	$ 280	$ 421

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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.