| | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 | 2025-12-31 |
| Asset Impairment Charge | | | 15000000.0 | 142000000.0 | | 352000000.0 |
| Beginning Cash Position | | 1511000000.0 | 206000000.0 | 179000000.0 | 103000000.0 | 154000000.0 |
| Capital Expenditure | | -2848000000.0 | -3356000000.0 | -4030000000.0 | -4521000000.0 | -4705000000.0 |
| Cash Dividends Paid | | -891000000.0 | -906000000.0 | -970000000.0 | -992000000.0 | -1016000000.0 |
| Cash Flow From Continuing Financing Activities | | -912000000.0 | 2238000000.0 | 1434000000.0 | 1861000000.0 | 1310000000.0 |
| Cash Flow From Continuing Investing Activities | | -3076000000.0 | -3652000000.0 | -4350000000.0 | -4888000000.0 | -5065000000.0 |
| Cash Flow From Continuing Operating Activities | | 2683000000.0 | 1387000000.0 | 2891000000.0 | 3538000000.0 | 3700000000.0 |
| Change In Account Payable | | 560000000.0 | -141000000.0 | 124000000.0 | 283000000.0 | 210000000.0 |
| Change In Accrued Expense | | -29000000.0 | 38000000.0 | -23000000.0 | 19000000.0 | 104000000.0 |
| Change In Income Tax Payable | | 22000000.0 | 32000000.0 | -126000000.0 | -53000000.0 | 105000000.0 |
| Change In Interest Payable | | -29000000.0 | 38000000.0 | -23000000.0 | 19000000.0 | 104000000.0 |
| Change In Inventory | | -161000000.0 | -91000000.0 | -37000000.0 | -59000000.0 | -28000000.0 |
| Change In Other Current Liabilities | | 21000000.0 | 41000000.0 | -141000000.0 | -240000000.0 | 4000000.0 |
| Change In Other Working Capital | | 111000000.0 | -218000000.0 | 90000000.0 | 193000000.0 | 4000000.0 |
| Change In Payable | | 582000000.0 | -109000000.0 | -2000000.0 | 230000000.0 | 315000000.0 |
| Change In Payables And Accrued Expense | | 553000000.0 | -71000000.0 | -25000000.0 | 249000000.0 | 419000000.0 |
| Change In Prepaid Assets | | -28000000.0 | -43000000.0 | -33000000.0 | -7000000.0 | -24000000.0 |
| Change In Receivables | | -292000000.0 | -13000000.0 | -249000000.0 | -88000000.0 | -186000000.0 |
| Change In Tax Payable | | 22000000.0 | 32000000.0 | -126000000.0 | -53000000.0 | 105000000.0 |
| Change In Working Capital | | 204000000.0 | -395000000.0 | -395000000.0 | 48000000.0 | 189000000.0 |
| Changes In Cash | | -1305000000.0 | -27000000.0 | -25000000.0 | 511000000.0 | -55000000.0 |
| Common Stock Dividend Paid | | -891000000.0 | -906000000.0 | -970000000.0 | -992000000.0 | -1016000000.0 |
| Common Stock Issuance | 1000000000.0 | 0.0 | 0.0 | | | |
| Deferred Income Tax | | 989000000.0 | 252000000.0 | 316000000.0 | 307000000.0 | 219000000.0 |
| Deferred Tax | | 989000000.0 | 252000000.0 | 316000000.0 | 307000000.0 | 219000000.0 |
| Depreciation | | 1317000000.0 | 1255000000.0 | 1446000000.0 | 1581000000.0 | 1607000000.0 |
| Depreciation Amortization Depletion | | 1317000000.0 | 1255000000.0 | 1446000000.0 | 1581000000.0 | 1607000000.0 |
| Depreciation And Amortization | | 1317000000.0 | 1255000000.0 | 1446000000.0 | 1581000000.0 | 1607000000.0 |
| End Cash Position | | 206000000.0 | 179000000.0 | 154000000.0 | 614000000.0 | 99000000.0 |
| Financing Cash Flow | | -912000000.0 | 2238000000.0 | 1434000000.0 | 1861000000.0 | 1310000000.0 |
| Free Cash Flow | | -165000000.0 | -1969000000.0 | -1139000000.0 | -983000000.0 | -1005000000.0 |
| Gain Loss On Sale Of Business | -109000000.0 | 0.0 | 0.0 | | | |
| Income Tax Paid Supplemental Data | | 21000000.0 | 58000000.0 | 161000000.0 | | 73000000.0 |
| Interest Paid Supplemental Data | | 1021000000.0 | 1002000000.0 | 1062000000.0 | | 999000000.0 |
| Investing Cash Flow | | -3076000000.0 | -3652000000.0 | -4350000000.0 | -4888000000.0 | -5065000000.0 |
| Issuance Of Capital Stock | 1000000000.0 | 0.0 | 0.0 | | | |
| Issuance Of Debt | | 800000000.0 | 3825000000.0 | 2100000000.0 | 5825000000.0 | 5925000000.0 |
| Long Term Debt Issuance | | 700000000.0 | 3150000000.0 | 2100000000.0 | 5825000000.0 | 5925000000.0 |
| Long Term Debt Payments | | -3005000000.0 | -537000000.0 | -2760000000.0 | -3529000000.0 | -3129000000.0 |
| Net Business Purchase And Sale | 155000000.0 | 0.0 | 0.0 | | | |
| Net Common Stock Issuance | 1000000000.0 | 0.0 | 0.0 | | | |
| Net Income From Continuing Operations | | 439000000.0 | 1176000000.0 | 1127000000.0 | 1494000000.0 | 1271000000.0 |
| Net Investment Purchase And Sale | | -11000000.0 | -12000000.0 | -13000000.0 | -12000000.0 | -12000000.0 |
| Net Issuance Payments Of Debt | | -2205000000.0 | 3288000000.0 | -885000000.0 | 1901000000.0 | 2571000000.0 |
| Net Long Term Debt Issuance | | -2305000000.0 | 2613000000.0 | -660000000.0 | 2296000000.0 | 2796000000.0 |
| Net Other Financing Charges | | 2184000000.0 | -144000000.0 | 3289000000.0 | 952000000.0 | -245000000.0 |
| Net Other Investing Changes | | -217000000.0 | -284000000.0 | -307000000.0 | -355000000.0 | -348000000.0 |
| Net PPEPurchase And Sale | | -2848000000.0 | -3356000000.0 | -4030000000.0 | | -4705000000.0 |
| Net Short Term Debt Issuance | | 100000000.0 | 675000000.0 | -225000000.0 | -395000000.0 | -225000000.0 |
| Operating Cash Flow | | 2683000000.0 | 1387000000.0 | 2891000000.0 | 3538000000.0 | 3700000000.0 |
| Operating Gains Losses | | -351000000.0 | 90000000.0 | -10000000.0 | | -239000000.0 |
| Other Non Cash Items | | 85000000.0 | -1006000000.0 | 265000000.0 | 105000000.0 | 301000000.0 |
| Pension And Employee Benefit Expense | | -351000000.0 | 69000000.0 | -10000000.0 | 3000000.0 | -239000000.0 |
| Preferred Stock Dividend Paid | 0.0 | | | | | |
| Purchase Of Investment | | -59000000.0 | -50000000.0 | -134000000.0 | -146000000.0 | -114000000.0 |
| Purchase Of PPE | | -2848000000.0 | -3356000000.0 | -4030000000.0 | | -4705000000.0 |
| Repayment Of Debt | | -3005000000.0 | -537000000.0 | -2985000000.0 | -3754000000.0 | -3354000000.0 |
| Sale Of Business | 155000000.0 | 0.0 | 0.0 | | | |
| Sale Of Investment | | 48000000.0 | 38000000.0 | 121000000.0 | 134000000.0 | 102000000.0 |
| Short Term Debt Issuance | | 100000000.0 | 675000000.0 | 0.0 | | 0.0 |
| Short Term Debt Payments | | 0.0 | 0.0 | -225000000.0 | | -225000000.0 |