| | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 | 2025-12-31 |
| Asset Impairment Charge | 0.0 | 34900000.0 | 0.0 | 0.0 | | |
| Beginning Cash Position | | 26200000.0 | 25200000.0 | 27700000.0 | 35500000.0 | 29900000.0 |
| Capital Expenditure | | -2166500000.0 | -2334000000.0 | -2336600000.0 | -2260600000.0 | -2796900000.0 |
| Cash Dividends Paid | | -534800000.0 | -569600000.0 | -596700000.0 | -605900000.0 | -613100000.0 |
| Cash Flow From Continuing Financing Activities | | 349300000.0 | 494000000.0 | 280300000.0 | 104200000.0 | 522000000.0 |
| Cash Flow From Continuing Investing Activities | | -2152200000.0 | -2471700000.0 | -2261800000.0 | -2227100000.0 | -2570100000.0 |
| Cash Flow From Continuing Operating Activities | | 1801900000.0 | 1980200000.0 | 1983700000.0 | 2122400000.0 | 2045200000.0 |
| Change In Account Payable | | 2100000.0 | -47200000.0 | 46000000.0 | 6400000.0 | -6800000.0 |
| Change In Income Tax Payable | | 32200000.0 | -8600000.0 | 2700000.0 | 18700000.0 | 13400000.0 |
| Change In Inventory | | -105600000.0 | -102400000.0 | -89200000.0 | -38600000.0 | 38900000.0 |
| Change In Other Current Assets | | 81000000.0 | 21700000.0 | 8100000.0 | 36400000.0 | -11600000.0 |
| Change In Other Current Liabilities | | 84600000.0 | 50200000.0 | -144000000.0 | -97900000.0 | -153900000.0 |
| Change In Other Working Capital | | -40000000.0 | 17000000.0 | -59000000.0 | -9000000.0 | -1000000.0 |
| Change In Payable | | 34300000.0 | -55800000.0 | 48700000.0 | 25100000.0 | 6600000.0 |
| Change In Payables And Accrued Expense | | 34300000.0 | -55800000.0 | 48700000.0 | 25100000.0 | 6600000.0 |
| Change In Prepaid Assets | | -3100000.0 | 136600000.0 | 156500000.0 | 109500000.0 | -18200000.0 |
| Change In Receivables | | -59800000.0 | 54500000.0 | 16700000.0 | 11100000.0 | 19900000.0 |
| Change In Tax Payable | | 32200000.0 | -8600000.0 | 2700000.0 | 18700000.0 | 13400000.0 |
| Change In Working Capital | | -8600000.0 | 121800000.0 | -62200000.0 | 36600000.0 | -119300000.0 |
| Changes In Account Receivables | | -59800000.0 | 54500000.0 | 16700000.0 | 11100000.0 | 19900000.0 |
| Changes In Cash | | -1000000.0 | 2500000.0 | 2200000.0 | -500000.0 | -2900000.0 |
| Common Stock Dividend Paid | | -534800000.0 | -569600000.0 | -596700000.0 | | -613100000.0 |
| Common Stock Issuance | | 0.0 | 0.0 | 0.0 | | 1100000.0 |
| Common Stock Payments | 0.0 | | | | | |
| Deferred Income Tax | | 7300000.0 | -16600000.0 | -8600000.0 | -6200000.0 | 20900000.0 |
| Deferred Tax | | 7300000.0 | -16600000.0 | -8600000.0 | -6200000.0 | 20900000.0 |
| Depreciation | | 984900000.0 | 1138900000.0 | 1170500000.0 | 1198800000.0 | 1218100000.0 |
| Depreciation Amortization Depletion | | 984900000.0 | 1138900000.0 | 1170500000.0 | 1198800000.0 | 1218100000.0 |
| Depreciation And Amortization | | 984900000.0 | 1138900000.0 | 1170500000.0 | 1198800000.0 | 1218100000.0 |
| Earnings Losses From Equity Investments | | -7300000.0 | -7400000.0 | -7800000.0 | -7400000.0 | -6800000.0 |
| End Cash Position | | 25200000.0 | 27700000.0 | 29900000.0 | 35000000.0 | 27000000.0 |
| Financing Cash Flow | | 349300000.0 | 494000000.0 | 280300000.0 | 104200000.0 | 522000000.0 |
| Free Cash Flow | | -364600000.0 | -353800000.0 | -352900000.0 | -138200000.0 | -751700000.0 |
| Income Tax Paid Supplemental Data | | 21600000.0 | 34400000.0 | 38000000.0 | | 6100000.0 |
| Interest Paid Supplemental Data | | 393700000.0 | 500900000.0 | 551600000.0 | | 602800000.0 |
| Investing Cash Flow | | -2152200000.0 | -2471700000.0 | -2261800000.0 | -2227100000.0 | -2570100000.0 |
| Issuance Of Capital Stock | | 0.0 | 0.0 | 0.0 | | 1100000.0 |
| Issuance Of Debt | | 1121200000.0 | 2498000000.0 | 1465500000.0 | 1135200000.0 | 1736000000.0 |
| Long Term Debt Issuance | | 1121200000.0 | 2498000000.0 | 1465500000.0 | 1135200000.0 | 1736000000.0 |
| Long Term Debt Payments | | -438900000.0 | -1029300000.0 | -887600000.0 | -869300000.0 | -794900000.0 |
| Net Business Purchase And Sale | | 0.0 | -217900000.0 | 0.0 | | 0.0 |
| Net Common Stock Issuance | | 0.0 | 0.0 | 0.0 | | 1100000.0 |
| Net Income From Continuing Operations | | 765000000.0 | 743600000.0 | 885800000.0 | 852400000.0 | 867900000.0 |
| Net Investment Purchase And Sale | | -23200000.0 | -23600000.0 | -37000000.0 | -35900000.0 | -43300000.0 |
| Net Issuance Payments Of Debt | | 895200000.0 | 1069800000.0 | 892700000.0 | 728400000.0 | 1128500000.0 |
| Net Long Term Debt Issuance | | 682300000.0 | 1468700000.0 | 577900000.0 | 265900000.0 | 941100000.0 |
| Net Other Financing Charges | | -11100000.0 | -6200000.0 | -15700000.0 | -18700000.0 | 5500000.0 |
| Net Other Investing Changes | | 37500000.0 | 103800000.0 | 111800000.0 | 69400000.0 | 270100000.0 |
| Net PPEPurchase And Sale | | -2166500000.0 | -2334000000.0 | -2336600000.0 | -2260600000.0 | -2796900000.0 |
| Net Short Term Debt Issuance | | 212900000.0 | -398900000.0 | 314800000.0 | 462500000.0 | 187400000.0 |
| Operating Cash Flow | | 1801900000.0 | 1980200000.0 | 1983700000.0 | 2122400000.0 | 2045200000.0 |
| Operating Gains Losses | | -7300000.0 | -7400000.0 | -7800000.0 | -7400000.0 | -6800000.0 |
| Other Non Cash Items | | 6900000.0 | -17800000.0 | -9200000.0 | -600000.0 | -5000000.0 |
| Pension And Employee Benefit Expense | 15600000.0 | | | | | |
| Purchase Of Business | | 0.0 | -217900000.0 | 0.0 | | 0.0 |
| Purchase Of Investment | | -50500000.0 | -58700000.0 | -175500000.0 | -185500000.0 | -335600000.0 |
| Purchase Of PPE | | -2166500000.0 | -2334000000.0 | -2336600000.0 | -2260600000.0 | -2796900000.0 |
| Repayment Of Debt | | -438900000.0 | -1029300000.0 | -887600000.0 | -869300000.0 | -794900000.0 |
| Repurchase Of Capital Stock | 0.0 | | | | | |
| Sale Of Investment | | 27300000.0 | 35100000.0 | 138500000.0 | 149600000.0 | 292300000.0 |
| Short Term Debt Issuance | 840500000.0 | 712900000.0 | 0.0 | | | |
| Short Term Debt Payments | -41000000.0 | 0.0 | -898900000.0 | | | |
| Stock Based Compensation | | 18800000.0 | 17700000.0 | 15200000.0 | 18400000.0 | 20700000.0 |
| Unrealized Gain Loss On Investment Securities | | | 0.0 | 0.0 | | 48700000.0 |