Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income	$ 827.3	$ 773.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	218.1	140.0
Equity-based compensation expense	71.4	53.3
Deferred income taxes	(12.3)	(6.7)
Provision for credit losses	6.6	(7.3)
Other	13.1	(33.4)
Changes in assets and liabilities:
Accounts receivable	(156.2)	(323.5)
Merchandise inventory	(16.1)	(87.5)
Other assets	(273.9)	(92.6)
Accounts payable-trade	188.5	179.7
Other liabilities	227.5	41.4
Net cash provided by operating activities	1,094.0	636.7
Cash flows from investing activities:
Capital expenditures	(97.2)	(66.2)
Acquisitions of businesses, net of cash acquired	(28.0)	(339.7)
Proceeds from the sale of equity method investment	0.0	36.0
Net cash used in investing activities	(125.2)	(369.9)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	1,854.6	548.3
Repayments of borrowings under revolving credit facility	(2,047.3)	(379.6)
Repayments of debt	(435.5)	(11.2)
Repayments of receivable financing liability	(58.9)	(2.1)
Payments to extinguish debt	0.0	(56.5)
Net change in accounts payable-inventory financing	46.6	(183.7)
Financing payments for revenue generating assets	0.0	(46.1)
Repurchases of common stock	0.0	(1,185.3)
Proceeds from stock option exercises	20.7	60.7
Payment of incentive compensation plan withholding taxes	(21.9)	(28.4)
Dividend payments	(202.7)	(167.1)
Other	14.0	19.2
Net cash used in financing activities	(830.4)	(1,431.8)
Effect of exchange rate changes on cash and cash equivalents	(11.9)	(0.1)
Net increase (decrease) in cash and cash equivalents	126.5	(1,165.1)
Cash and cash equivalents—beginning of period	258.1	1,410.2
Cash and cash equivalents—end of period	384.6	245.1
Supplementary disclosure of cash flow information:
Interest paid	(131.6)	(85.1)
Income taxes paid, net	$ (274.5)	$ (264.4)