CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Consolidated net income	$ 1,224	$ 1,392
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	1,179	1,107
Deferred income tax expense (benefit)	29	(32)
Interest accretion on landfill liabilities	72	71
Provision for bad debts	27	35
Equity-based compensation expense	62	63
Net gain on disposal of assets	(19)	(21)
(Gain) loss from divestitures, asset impairments and other, net	79	(14)
Equity in net losses of unconsolidated entities, net of dividends	39	29
Loss on early extinguishment of debt	85
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Receivables	(2)	43
Other current assets	(52)	(22)
Other assets	7	(3)
Accounts payable and accrued liabilities	213	177
Deferred revenues and other liabilities	(91)	(167)
Net cash provided by operating activities	2,852	2,658
Cash flows from investing activities:
Acquisitions of businesses, net of cash acquired	(513)	(342)
Capital expenditures	(1,532)	(1,240)
Proceeds from divestitures of businesses and other assets (net of cash divested)	29	106
Other, net	(80)	(30)
Net cash used in investing activities	(2,096)	(1,506)
Cash flows from financing activities:
New borrowings	4,558	174
Debt repayments	(502)	(338)
Premiums paid on early extinguishment of debt	(84)
Net commercial paper borrowings (repayments)	(1,001)	523
Common stock repurchase program	(248)	(750)
Cash dividends	(658)	(605)
Exercise of common stock options	60	45
Tax payments associated with equity-based compensation transactions	(32)	(28)
Other, net	(13)	(36)
Net cash provided by (used in) financing activities	2,080	(1,015)
Effect of exchange rate changes on cash, cash equivalents and restricted cash and cash equivalents	1
Increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents	2,837	137
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	183	293
Cash, cash equivalents and restricted cash and cash equivalents at end of period	$ 3,020	$ 430