Condensed Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Activities
Net income	$ 393.0	$ 243.6
Adjustments to reconcile net income to net cash and cash equivalents provided by (used for) operating activities:
Stock-based compensation	3.1	2.0
Loss on Debt Extinguishment	0.0	23.5
Depreciation and amortization	151.7	145.2
Deferred income taxes	7.9	51.6
Qualified pension plan contributions	(0.4)	(0.1)
Qualified pension plan income	(8.0)	(7.3)
Change in:
Receivables	(85.6)	(207.1)
Income taxes receivable/payable	88.0	4.6
Inventories	(45.0)	(10.7)
Other current assets	(20.3)	12.2
Accounts payable and accrued liabilities	(132.6)	(3.3)
Other assets	(0.8)	8.2
Other noncurrent liabilities	2.8	7.5
Other operating activities	(0.3)	(0.1)
Net operating activities	353.5	269.8
Investing Activities
Capital expenditures	(47.3)	(51.2)
Net investing activities	(47.3)	(51.2)
Long-term debt:
Borrowings	65.0	365.0
Repayments	(65.2)	(485.2)
Debt Early Redemption Premium	0.0	(18.7)
Common stock repurchased and retired	(263.2)	0.0
Stock options exercised	5.2	25.7
Dividends paid	(30.8)	(31.7)
Debt issuance costs	0.0	(3.1)
Net financing activities	(289.0)	(148.0)
Effect of exchange rate changes on cash and cash equivalents	0.2	(0.4)
Net increase in cash and cash equivalents	17.4	70.2
Cash and cash equivalents, beginning of year	180.5	189.7
Cash and cash equivalents, end of period	197.9	259.9
Cash paid for interest and income taxes:
Interest, net	53.5	98.2
Income taxes, net of refunds	20.0	4.7
Non-cash investing activities:
Decrease in capital expenditures included in accounts payable and accrued liabilities	$ 11.4	$ 28.9