Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Consolidated net income	$ 731	$ 708
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	935	917
Deferred income tax provision	48	95
Interest accretion on landfill liabilities	62	61
Interest accretion on and discount rate adjustments to environmental remediation liabilities and recovery assets	21	17
Provision for bad debts	29	29
Equity-based compensation expense	38	28
Net gain on disposal of assets	(13)	(16)
Excess tax benefits associated with equity-based transactions	(7)	(4)
Effect of (income) expense from divestitures, asset impairments and unusual items	6	(1)
Equity in net losses of unconsolidated entities, net of dividends	20	14
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Receivables	(146)	(159)
Other current assets	(25)	38
Other assets	35	(4)
Accounts payable and accrued liabilities	96	(62)
Deferred revenues and other liabilities	(93)	(8)
Net cash provided by operating activities	1,737	1,653
Cash flows from investing activities:
Acquisitions of businesses, net of cash acquired	(645)	(343)
Capital expenditures	(909)	(737)
Proceeds from divestitures of businesses (net of cash divested) and other sales of assets	22	36
Net receipts from restricted trust and escrow accounts	74	36
Investments in unconsolidated entities	(92)	(162)
Other	15	(5)
Net cash used in investing activities	(1,535)	(1,175)
Cash flows from financing activities:
New borrowings	1,001	775
Debt repayments	(425)	(932)
Common stock repurchases	(528)	(443)
Cash dividends	(481)	(454)
Exercise of common stock options	40	28
Excess tax benefits associated with equity-based transactions	7	4
Distributions paid to noncontrolling interests	(30)	(30)
Other	(43)	(17)
Net cash used in financing activities	(459)	(1,069)
Effect of exchange rate changes on cash and cash equivalents	0	1
Decrease in cash and cash equivalents	(257)	(590)
Cash and cash equivalents at beginning of period	539	1,140
Cash and cash equivalents at end of period	$ 282	$ 550