Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended		17 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 100.0	$ 110.7	$ 112.9	$ 180.0
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Loss on sale of business			0.0	8.8
Insurance recoveries received for property damage incurred from natural disaster	1.0	(5.9)	2.7	(12.8)
Income from equity method investments	(4.4)	(4.6)	(7.2)	(7.2)
Dividends from affiliates			2.5	2.0
Restructuring charges, net of cash paid			5.9	(0.2)
Provision for bad debts			3.1	2.2
Unrealized losses (gains), net on derivative contracts			1.1	(0.2)
Stock-based compensation expense			10.4	11.4
Depreciation and amortization			37.9	34.9
Deferred income taxes			6.6	15.7
Pension expense			4.9	64.2
Pension contributions			(1.2)	(1.0)
Other items, net			0.7	(0.1)
Changes in assets and liabilities, net of effects of divestitures:
Accounts and notes receivable			(151.5)	(270.0)
Inventories			43.1	(149.9)
Other current assets			(1.1)	10.2
Accounts payable			(66.2)	52.6
Accrued expenses			(11.9)	(21.0)
Income taxes payable / receivable			10.2	(11.5)
Other, net			6.3	(19.1)
Net cash provided by (used in) operating activities			6.5	(111.0)
Cash flows from investing activities:
Proceeds from the disposal of property, plant and equipment			0.3	0.8
Purchases of property, plant and equipment			(43.5)	(53.5)
Net proceeds from sale of business and related property			0.0	43.6
Payments to Acquire Short-term Investments			(1.1)	(1.8)
Insurance recoveries received for property damage incurred from natural disaster			0.0	12.8
Net cash used in investing activities			(44.3)	1.9
Cash flows from financing activities:
Short-term debt payments			(1.9)	(2.1)
Proceeds from facilities			1.9	2.1
Proceeds from Other Debt			91.0	65.5
Asset securitization payments			(70.0)	(43.5)
Long-term debt borrowings			0.0	0.0
Long-term debt payments			(2.6)	(33.3)
Borrowings from credit facility			1,060.5	1,459.5
Payments on credit facility			(863.5)	(1,037.5)
Proceeds from employee stock purchases			1.6	1.6
Repurchases of common stock			(100.0)	(250.0)
Repurchases of common stock to satisfy employee withholding tax obligations			(5.6)	(14.5)
Cash dividends paid			(59.1)	(50.8)
Net cash provided by financing activities			52.3	97.0
Increase (decrease) in cash and cash equivalents			14.5	(12.1)
Effect of exchange rates on cash and cash equivalents			(7.0)	2.2
Cash and cash equivalents, beginning of period			37.3	46.3
Cash and cash equivalents, end of period	44.8	36.4	44.8	36.4	$ 37.3
Supplemental disclosures of cash flow information:
Interest paid			16.9	23.5
Income taxes paid (net of refunds)			22.8	54.2
Insurance recoveries received	0.0	52.0	0.0	128.0	$ 367.5
Retained Earnings [Member]
Cash flows from operating activities:
Net income	$ 100.0	$ 110.7	112.9	$ 180.0
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Insurance recoveries received for property damage incurred from natural disaster			$ 0.0