| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-03-31 |
| Amortization Cash Flow | | 49000000.0 | 26000000.0 | 23000000.0 | 22000000.0 | 21000000.0 |
| Amortization Of Intangibles | | 49000000.0 | 26000000.0 | 23000000.0 | 22000000.0 | 21000000.0 |
| Asset Impairment Charge | 563000000.0 | 545000000.0 | 0.0 | | | |
| Beginning Cash Position | | 327000000.0 | 576000000.0 | 528000000.0 | 454000000.0 | 645000000.0 |
| Capital Expenditure | | -1329000000.0 | -1689000000.0 | -2422000000.0 | -2565000000.0 | -2633000000.0 |
| Capital Expenditure Reported | | -1329000000.0 | -1689000000.0 | -2422000000.0 | -2565000000.0 | -2633000000.0 |
| Cash Dividends Paid | | -1832000000.0 | -185000000.0 | -366000000.0 | -444000000.0 | -454000000.0 |
| Cash Flow From Continuing Financing Activities | | -1695000000.0 | -799000000.0 | 2196000000.0 | -2289000000.0 | -2781000000.0 |
| Cash Flow From Continuing Investing Activities | | 3282000000.0 | 3104000000.0 | 3031000000.0 | 7428000000.0 | 5712000000.0 |
| Cash Flow From Continuing Operating Activities | | -1338000000.0 | -2353000000.0 | -5301000000.0 | -2464000000.0 | -1634000000.0 |
| Change In Account Payable | -343000000.0 | 346000000.0 | | | | |
| Change In Income Tax Payable | 186000000.0 | | | | | |
| Change In Inventory | | -68000000.0 | -228000000.0 | 60000000.0 | -99000000.0 | -115000000.0 |
| Change In Other Current Assets | -139000000.0 | | | | | |
| Change In Other Working Capital | | -3270000000.0 | -5292000000.0 | -7481000000.0 | -10878000000.0 | -8995000000.0 |
| Change In Payable | -343000000.0 | 346000000.0 | | | | |
| Change In Payables And Accrued Expense | | 346000000.0 | 1142000000.0 | -1330000000.0 | 1121000000.0 | 1213000000.0 |
| Change In Receivables | | -616000000.0 | -868000000.0 | 396000000.0 | 688000000.0 | 209000000.0 |
| Change In Tax Payable | 186000000.0 | | | | | |
| Change In Working Capital | | -3608000000.0 | -5246000000.0 | -8355000000.0 | -9168000000.0 | -7688000000.0 |
| Changes In Account Receivables | | -616000000.0 | -868000000.0 | 396000000.0 | 688000000.0 | 209000000.0 |
| Changes In Cash | | 249000000.0 | -48000000.0 | -74000000.0 | 2675000000.0 | 1297000000.0 |
| Common Stock Dividend Paid | | -1832000000.0 | -185000000.0 | -366000000.0 | -444000000.0 | -454000000.0 |
| Common Stock Payments | | 0.0 | 0.0 | -992000000.0 | -999000000.0 | -500000000.0 |
| Deferred Income Tax | | -205000000.0 | -643000000.0 | 251000000.0 | 222000000.0 | 115000000.0 |
| Deferred Tax | | -205000000.0 | -643000000.0 | 251000000.0 | 222000000.0 | 115000000.0 |
| Depreciation | | 3946000000.0 | 1823000000.0 | 1860000000.0 | 1985000000.0 | 1944000000.0 |
| Depreciation Amortization Depletion | | 3995000000.0 | 1849000000.0 | 1883000000.0 | 2007000000.0 | 1965000000.0 |
| Depreciation And Amortization | | 3995000000.0 | 1849000000.0 | 1883000000.0 | 2007000000.0 | 1965000000.0 |
| End Cash Position | | 576000000.0 | 528000000.0 | 454000000.0 | 3129000000.0 | 1942000000.0 |
| Financing Cash Flow | | -1695000000.0 | -799000000.0 | 2196000000.0 | -2289000000.0 | -2781000000.0 |
| Free Cash Flow | | -2667000000.0 | -4042000000.0 | -7723000000.0 | -5029000000.0 | -4267000000.0 |
| Gain Loss On Investment Securities | | -994000000.0 | 1793000000.0 | 213000000.0 | -1619000000.0 | -614000000.0 |
| Income Tax Paid Supplemental Data | | | 287000000.0 | 466000000.0 | 436000000.0 | |
| Interest Paid Supplemental Data | | | 230000000.0 | 264000000.0 | 375000000.0 | |
| Investing Cash Flow | | 3282000000.0 | 3104000000.0 | 3031000000.0 | 7428000000.0 | 5712000000.0 |
| Issuance Of Debt | | 1394000000.0 | 271000000.0 | 3880000000.0 | 1120000000.0 | -145000000.0 |
| Long Term Debt Issuance | | 152000000.0 | 14000000.0 | 3195000000.0 | 920000000.0 | 20000000.0 |
| Long Term Debt Payments | | -105000000.0 | -1420000000.0 | -168000000.0 | -121000000.0 | -146000000.0 |
| Net Business Purchase And Sale | 0.0 | | | | | |
| Net Common Stock Issuance | | 0.0 | 0.0 | -992000000.0 | -999000000.0 | -500000000.0 |
| Net Income From Continuing Operations | | -83000000.0 | -167000000.0 | 1577000000.0 | 3738000000.0 | 2984000000.0 |
| Net Investment Purchase And Sale | | -141000000.0 | -221000000.0 | -228000000.0 | -277000000.0 | -277000000.0 |
| Net Issuance Payments Of Debt | | 1289000000.0 | -2329000000.0 | 3512000000.0 | -845000000.0 | -1635000000.0 |
| Net Long Term Debt Issuance | | 47000000.0 | -1406000000.0 | 3027000000.0 | 799000000.0 | -126000000.0 |
| Net Other Financing Charges | | -1152000000.0 | 1715000000.0 | 42000000.0 | -1000000.0 | -192000000.0 |
| Net Other Investing Changes | | 4752000000.0 | 5014000000.0 | 5681000000.0 | 10270000000.0 | 8622000000.0 |
| Net Short Term Debt Issuance | | 1242000000.0 | -923000000.0 | 485000000.0 | -1644000000.0 | -1509000000.0 |
| Operating Cash Flow | | -1338000000.0 | -2353000000.0 | -5301000000.0 | -2464000000.0 | -1634000000.0 |
| Operating Gains Losses | | -994000000.0 | 1793000000.0 | 213000000.0 | -1619000000.0 | -614000000.0 |
| Other Non Cash Items | | -443000000.0 | 61000000.0 | -870000000.0 | 2356000000.0 | 1604000000.0 |
| Purchase Of Business | 0.0 | | | | | |
| Purchase Of Investment | | -6673000000.0 | -4271000000.0 | -6050000000.0 | -6282000000.0 | -6587000000.0 |
| Repayment Of Debt | | -105000000.0 | -2600000000.0 | -368000000.0 | -1965000000.0 | -1490000000.0 |
| Repurchase Of Capital Stock | | 0.0 | 0.0 | -992000000.0 | -999000000.0 | -500000000.0 |
| Sale Of Investment | | 6532000000.0 | 4050000000.0 | 5822000000.0 | 6005000000.0 | 6310000000.0 |
| Short Term Debt Issuance | | 1242000000.0 | 257000000.0 | 685000000.0 | 200000000.0 | -165000000.0 |
| Short Term Debt Payments | | 0.0 | -1180000000.0 | -200000000.0 | -1844000000.0 | -1344000000.0 |
| Unrealized Gain Loss On Investment Securities | -186000000.0 | 160000000.0 | | | | |
