Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net earnings	$ 295.1	$ 269.6
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation of property and equipment	41.8	41.2
(Gain) loss on sale of property and equipment	(0.6)	3.5
Bad debt recoveries	(1.4)	(0.3)
Deferred income taxes	0.3	1.0
Stock-based compensation	1.9	1.5
Amortization of intangible assets	2.7	2.7
Changes in operating assets and liabilities:
Trade accounts receivable	(133.7)	(169.9)
Inventories	57.7	(76.4)
Other current assets	45.4	60.7
Accounts payable	8.5	56.8
Accrued expenses	(11.9)	(30.1)
Income taxes	83.9	69.6
Other	(1.2)	0.1
Net cash provided by operating activities	388.5	230.0
Cash flows from investing activities:
Purchases of property and equipment	(33.7)	(35.5)
Proceeds from sale of property and equipment	2.8	2.4
Other	(0.1)	(0.1)
Net cash used in investing activities	(31.0)	(33.2)
Cash flows from financing activities:
Proceeds from debt obligations	230.0	235.0
Payments against debt obligations	(385.0)	(260.0)
Proceeds from exercise of stock options	5.9	3.9
Cash dividends paid	(199.8)	(178.4)
Net cash used in financing activities	(348.9)	(199.5)
Effect of exchange rate changes on cash and cash equivalents	1.1	0.7
Net increase (decrease) in cash and cash equivalents	9.7	(2.0)
Cash and cash equivalents at beginning of period	230.1	236.2
Cash and cash equivalents at end of period	239.8	234.2
Supplemental information:
Cash paid for interest	5.1	2.3
Net cash paid for income taxes	9.7	15.2
Leased assets obtained in exchange for new operating lease liabilities	$ 25.9	$ 23.9