CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 106	$ 176
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	85	84
Provision for credit losses	7	4
Deferred income tax provision	14	3
Stock-based compensation expense	14	17
Other, net	(2)	(18)
Changes in operating assets and liabilities:
Accounts receivable	85	(71)
Accounts payable and accrued expenses	(47)	32
Income taxes payable	(3)	43
Other assets and liabilities, net	(12)	5
Net cash provided by operating activities	247	275
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(108)	(56)
Capital expenditures	(83)	(47)
Increase in investments and other assets	(15)	(7)
Net cash used in investing activities	(206)	(110)
Cash flows from financing activities:
Proceeds from borrowings	0	1,139
Repayments of debt	(801)	(802)
Purchases of treasury stock	(75)	(53)
Exercise of stock options	80	20
Employee payroll tax withholdings on stock issued under stock-based compensation plans	(13)	(15)
Dividends paid	(71)	(72)
Distributions to noncontrolling interest partners	(7)	(12)
Other financing activities, net	(4)	(41)
Net cash (used in) provided by financing activities	(891)	164
Net change in cash and cash equivalents and restricted cash	(850)	329
Cash and cash equivalents and restricted cash, beginning of period	1,192	135
Cash and cash equivalents and restricted cash, end of period	$ 342	$ 464