Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net Income	$ 223.2	$ 145.8
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	85.2	84.0
Impairment charges	4.5	0.1
Loss on sale of assets	0.7	1.6
Deferred income tax benefit	(5.8)	(7.1)
Stock-based compensation expense	12.5	11.4
Pension and other postretirement benefit expense	0.5	8.2
Pension and other postretirement benefit contributions and payments	15.0	8.6
Changes in operating assets and liabilities:
Accounts receivable	(125.8)	(8.4)
Unbilled receivables	10.4	3.0
Inventories	(81.4)	41.3
Accounts payable, trade	41.2	(28.9)
Other accrued expenses	30.8	5.3
Income taxes	(1.6)	30.9
Other, net	0.0	25.0
Net Cash Provided by Operating Activities	178.8	303.6
Investing Activities
Capital expenditures	(60.5)	(56.5)
Other	0.3	0.1
Net Cash Used in Investing Activities	(73.9)	(64.7)
Financing Activities
Cash dividends paid to shareholders	(46.7)	(43.9)
Purchase of treasury shares	(26.3)	(42.3)
Proceeds from exercise of stock options	25.4	7.5
Payments related to tax withholding for stock-based compensation	(23.5)	(10.4)
Accounts receivable facility borrowings	66.1	10.0
Accounts receivable facility payments	(124.1)	(110.0)
Proceeds from long-term debt	135.0	550.0
Payments on long-term debt	(141.4)	(417.1)
Short-term debt activity, net	16.6	26.5
Net Cash Used in Financing Activities	(118.9)	(31.3)
Effect of exchange rate changes on cash	(0.8)	(7.7)
(Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	(14.8)	199.9
Cash, cash equivalents and restricted cash at beginning of year	321.1	216.2
Cash, Cash Equivalents and Restricted Cash at End of Period	306.3	416.1
Payments for (Proceeds from) Investments	13.8	1.6
Bargain purchase price gain	(0.6)	0.0
Payments to Acquire Businesses, Net of Cash Acquired	0.1	(6.7)
Payments of Financing Costs	0.0	(1.6)
Noncontrolling Interest [Member]
Operating Activities
Net Income	$ 5.1	$ 3.2