Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Activities
Net Income	$ 381.5	$ 292.4	$ 374.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	167.8	167.1	160.6
Impairment charges	4.5	0.4	2.6
Loss (gain) on sale of assets	1.3	0.9	(4.0)
Acquisition-related gain	(0.9)	(11.1)	0.0
Deferred income tax benefit	(15.1)	(23.2)	(8.9)
Stock-based compensation expense	20.2	23.2	27.1
Pension and other postretirement (income) expense	(6.6)	17.4	2.2
Pension and other postretirement benefit contributions and payments	(24.5)	(20.6)	(43.4)
Changes in operating assets and liabilities:
Accounts receivable	(55.8)	(20.7)	24.1
Unbilled receivables	6.2	18.5	(12.6)
Inventories	(215.8)	27.4	50.7
Accounts payable, trade	76.7	22.6	19.9
Other accrued expenses	55.2	55.1	(26.8)
Income taxes	8.5	8.5	(14.2)
Other, net	(15.9)	19.7	(1.9)
Net Cash Provided by Operating Activities	387.3	577.6	550.1
Investing Activities
Capital expenditures	(148.3)	(121.6)	(140.6)
Acquisitions, net of cash acquired of $5.9 million in 2019	(7.5)	(24.0)	(226.5)
Proceeds from disposals of property, plant and equipment	0.6	1.5	6.3
Investments in short-term marketable securities, net	(18.0)	(9.4)	(4.1)
Other	(0.6)	0.0	0.0
Net Cash Used in Investing Activities	(173.8)	(153.5)	(364.9)
Financing Activities
Cash dividends paid to shareholders	(92.2)	(87.0)	(84.9)
Purchase of treasury shares	(93.0)	(49.3)	(62.7)
Proceeds from exercise of stock options	26.0	37.4	27.5
Payments related to tax withholding for stock-based compensation	(23.8)	(16.0)	(15.4)
Proceeds from long-term debt	325.0	562.0	662.8
Payments on long-term debt	(338.3)	(757.7)	(633.8)
Deferred financing costs	0.0	(1.7)	(1.9)
Accounts receivable facility financing borrowings	310.9	144.0	25.0
Accounts receivable facility financing payments	(368.9)	(186.0)	0.0
Short-term debt activity, net	(14.5)	40.1	(17.0)
Noncontrolling interest dividends paid	(0.5)	(16.9)	(0.3)
Net Cash Used in Financing Activities	(269.3)	(331.1)	(100.7)
Effect of exchange rate changes on cash	(7.4)	11.9	(1.4)
(Decrease) Increase In Cash, Cash Equivalents and Restricted Cash	(63.2)	104.9	83.1
Cash, cash equivalents and restricted cash at beginning of year	321.1	216.2	133.1
Cash, Cash Equivalents and Restricted Cash at End of Year	$ 257.9	$ 321.1	$ 216.2