CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 466	$ 623
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	219	213
(Credit) provision for credit losses	(1)	1
Deferred income tax benefit	(16)	(20)
Stock-based compensation expense	40	37
Other, net	1	33
Changes in operating assets and liabilities:
Accounts receivable	(38)	150
Accounts payable and accrued expenses	(156)	(201)
Income taxes payable	5	(4)
Other assets and liabilities, net	18	50
Net cash provided by operating activities	538	882
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(609)	(106)
Capital expenditures	(231)	(139)
Increase in investments and other assets	0	(6)
Net cash used in investing activities	(840)	(251)
Cash flows from financing activities:
Proceeds from borrowings	1,147	0
Repayments of debt	(828)	(1)
Purchases of treasury stock	0	(573)
Exercise of stock options	47	68
Employee payroll tax withholdings on stock issued under stock-based compensation plans	(28)	(27)
Dividends paid	(154)	(152)
Distributions to noncontrolling interest partners	(28)	(36)
Other financing activities, net	(43)	8
Net cash provided by (used in) financing activities	113	(713)
Net change in cash and cash equivalents and restricted cash	(189)	(82)
Cash and cash equivalents and restricted cash, beginning of period	315	872
Cash and cash equivalents and restricted cash, end of period	$ 126	$ 790