Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 1,901	$ 1,409
Adjustments to reconcile net income to net cash generated from operating activities:
Depreciation and amortization	913	792
Amortization of leasehold interests in land	28	29
Amortization of deferred financing costs and original issue discount	31	33
Amortization of deferred gain on and rent from mall sale transactions	(3)	(3)
Loss on modification or early retirement of debt	5	2
Loss on disposal or impairment of assets	27	15
Stock-based compensation expense	26	28
Provision for doubtful accounts	77	139
Foreign exchange loss	38	20
Deferred income taxes	21	24
Changes in operating assets and liabilities:
Accounts receivable	76	280
Other assets	(4)	(22)
Accounts payable	11	12
Other liabilities	75	73
Net cash generated from operating activities	3,222	2,831
Cash flows from investing activities:
Change in restricted cash and cash equivalents	(1)	(1)
Capital expenditures	(592)	(1,103)
Proceeds from disposal of property and equipment	2	4
Acquisition of intangible assets	0	(47)
Net cash used in investing activities	(591)	(1,147)
Cash flows from financing activities:
Proceeds from exercise of stock options	32	5
Repurchase of common stock	(300)	0
Dividends paid	(2,362)	(2,348)
Proceeds from long-term debt (Note 3)	654	2,260
Repayments of long-term debt (Note 3)	(828)	(1,963)
Payments of financing costs	(5)	(31)
Net cash used in financing activities	(2,809)	(2,077)
Effect of exchange rate on cash	51	4
Decrease in cash and cash equivalents	(127)	(389)
Cash and cash equivalents at beginning of period	2,128	2,179
Cash and cash equivalents at end of period	$ 2,001	$ 1,790