Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 736.8	$ 643.0	$ 523.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	267.1	265.6	260.9
Equity-based compensation expense	48.5	40.7	43.7
Deferred income taxes	(87.9)	(56.1)	(172.7)
Other	29.0	10.9	62.4
Changes in assets and liabilities:
Accounts receivable	(244.8)	(365.1)	(136.8)
Merchandise inventory	(153.0)	(46.8)	16.9
Other assets	(10.9)	25.2	(117.8)
Accounts payable-trade	194.1	271.2	231.5
Other liabilities	248.3	117.3	66.5
Net cash provided by operating activities	1,027.2	905.9	777.7
Cash flows used in investing activities:
Capital expenditures	(236.3)	(86.1)	(81.1)
Acquisition of businesses, net of cash acquired	(95.1)	0.0
Net cash used in investing activities	(331.4)	(86.1)	(81.1)
Cash flows used in financing activities:
Proceeds from borrowings under revolving credit facilities	2,445.5	686.7	1,560.7
Repayments of borrowings under revolving credit facilities	(2,394.5)	(686.7)	(1,560.7)
Repayments of long-term debt	(23.5)	(21.6)	(14.9)
Proceeds from issuance of long-term debt	600.0	0.0	2,083.0
Payments to extinguish long-term debt	(539.0)	0.0	(2,121.3)
Net change in accounts payable-inventory financing	(1.3)	(67.4)	(84.0)
Repurchases of common stock	(657.2)	(522.3)	(534.0)
Payment of incentive compensation plan withholding taxes	(21.4)	(33.9)	(49.6)
Dividend payments	(183.4)	(139.4)	(106.9)
Other	25.0	29.8	9.0
Net cash (used in) provided by financing activities	(749.8)	(754.8)	(818.7)
Effect of exchange rate changes on cash and cash equivalents	2.2	(3.4)	2.6
Net (decrease) increase in cash and cash equivalents	(51.8)	61.6	(119.5)
Cash and cash equivalents – beginning of period	205.8	144.2	263.7
Cash and cash equivalents – end of period	154.0	205.8	144.2
Supplementary disclosure of cash flow information:
Interest paid	(154.2)	(148.8)	(148.5)
Taxes paid, net	$ (272.2)	$ (261.2)	$ (275.7)

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