Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Statement of Cash Flows [Abstract]
Net earnings	$ 110.1		$ 126.6
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	45.5		43.1
Share-based incentive compensation	11.1		8.9
Profit sharing expense	5.8		6.0
Provisions for bad debt	0.7		1.1
Provisions for inventory obsolescence	3.2		1.8
Deferred taxes, net	0.9		3.5
Net gain on sale of business	(2.2)		(12.2)
Other non-cash items	3.4		2.8
Changes in operating assets and liabilities:
Trade receivables, net	(56.0)		(33.6)
Inventories, net	(70.9)		(27.6)
Accounts payable	69.3		0.3
Customer advance payments	2.6		5.3
Income tax receivable/payable	44.4		23.1
Other assets and liabilities	(88.0)		(108.1)
Net cash provided by operating activities	79.9		41.0
Cash flows from investing activities:
Capital expenditures	(43.9)		(48.7)
Receipts associated with sale of business and property and equipment	0.6		9.3
Payments associated with debt investments	(6.0)	$ (5.7)	0.0
Investment in marketable securities	0.0		12.2
Settlement of foreign currency forward contracts	8.2		2.5
Other investing activities	0.1		0.0
Net cash used in investing activities	(41.0)		(24.7)
Cash flows from financing activities:
Net proceeds of short-term borrowings	1.7		69.4
Payments of long-term debt	(2.8)		0.0
Dividends paid on common stock	(25.8)		(25.7)
Impact of tax withholding on share-based compensation	(13.7)		(11.2)
Repurchases of common stock	(177.1)		0.0
Principal payments related to financing leases	(2.6)		(3.0)
Net cash (used in) provided by financing activities	(220.3)		29.5
Effect of foreign currency exchange rate changes on cash and cash equivalents	2.7		(33.6)
Cash and cash equivalents	548.7		262.4
Restricted cash and cash equivalents	0.0		0.0
Balance, beginning of period	548.7		262.4
Net change during the period	(178.7)		12.2
Cash and cash equivalents	370.0	548.7	274.6
Restricted cash and cash equivalents	0.0	0.0	0.0
Balance, end of period	370.0	$ 548.7	274.6
Supplemental Cash Flow Information:
Interest payments, net of amounts capitalized	43.3		50.0
Income tax (refunds) payments, net	(1.6)		15.9
Restructuring payments including associated costs	5.0		25.7
Non-cash items:
Transfers of shares of common stock from treasury for profit-sharing contributions	$ 28.0		$ 24.4