Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018
OPERATING ACTIVITIES
Net income	$ 336	$ 391
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	516	488
Gains on fuel derivatives, net	0	(16)
Share-based compensation	20	18
Other, net	12	24
Adjustments to reconcile net income to net cash provided by operating activities	884	904
Changes in operating assets and liabilities
Receivables	(50)	(30)
Inventories	7	1
Prepaid expenses and other	(154)	98
Accounts payable	65	19
Accrued liabilities and other	5	(198)
Customer deposits	358	271
Net cash provided by operating activities	1,116	1,064
INVESTING ACTIVITIES
Purchases of property and equipment	(2,129)	(574)
Payments of fuel derivative settlements	(6)	(21)
Other, net	76	6
Net cash used in investing activities	(2,059)	(588)
FINANCING ACTIVITIES
(Repayments of) proceeds from short-term borrowings, net	(81)	611
Principal repayments of long-term debt	(95)	(963)
Proceeds from issuance of long-term debt	1,439	469
Dividends paid	(348)	(323)
Purchases of treasury stock	(274)	(218)
Other, net	(29)	(4)
Net cash provided by (used in) financing activities	612	(428)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1	12
Net (decrease) increase in cash, cash equivalents and restricted cash	(331)	60
Cash, cash equivalents and restricted cash at beginning of period	996	422
Cash, cash equivalents and restricted cash at end of period	$ 665	$ 482