| | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 | 2025-12-31 |
| Amortization Cash Flow | | 212000000.0 | 199000000.0 | 133000000.0 | 126000000.0 | 125000000.0 |
| Amortization Of Intangibles | | 212000000.0 | 199000000.0 | 133000000.0 | 126000000.0 | 125000000.0 |
| Asset Impairment Charge | | 65000000.0 | 26000000.0 | 3355000000.0 | 3463000000.0 | 228000000.0 |
| Beginning Cash Position | | 606000000.0 | 370000000.0 | 315000000.0 | 204000000.0 | 170000000.0 |
| Capital Expenditure | | -426000000.0 | -650000000.0 | -728000000.0 | -715000000.0 | -653000000.0 |
| Cash Dividends Paid | | -249000000.0 | -65000000.0 | -143000000.0 | -292000000.0 | -365000000.0 |
| Cash Flow From Continuing Financing Activities | | -1724000000.0 | -1188000000.0 | -916000000.0 | -1063000000.0 | -1219000000.0 |
| Cash Flow From Continuing Investing Activities | | -493000000.0 | -696000000.0 | -970000000.0 | -817000000.0 | -747000000.0 |
| Cash Flow From Continuing Operating Activities | | 1981000000.0 | 1829000000.0 | 1741000000.0 | 1776000000.0 | 1898000000.0 |
| Change In Account Payable | 104000000.0 | -71000000.0 | 62000000.0 | | | |
| Change In Accrued Expense | -1000000.0 | -8000000.0 | 1000000.0 | | | |
| Change In Interest Payable | -1000000.0 | -8000000.0 | 1000000.0 | | | |
| Change In Other Current Assets | -8000000.0 | -1000000.0 | 1000000.0 | | | |
| Change In Other Current Liabilities | -71000000.0 | -97000000.0 | -86000000.0 | | | |
| Change In Other Working Capital | | -149000000.0 | -119000000.0 | -150000000.0 | -90000000.0 | -64000000.0 |
| Change In Payable | | -163000000.0 | 98000000.0 | 19000000.0 | 60000000.0 | 59000000.0 |
| Change In Payables And Accrued Expense | | -163000000.0 | 98000000.0 | 19000000.0 | 60000000.0 | 59000000.0 |
| Change In Prepaid Assets | -47000000.0 | -38000000.0 | -26000000.0 | | | |
| Change In Receivables | | -28000000.0 | -148000000.0 | -128000000.0 | -157000000.0 | -84000000.0 |
| Change In Working Capital | | -340000000.0 | -169000000.0 | -259000000.0 | -187000000.0 | -89000000.0 |
| Changes In Cash | | -236000000.0 | -55000000.0 | -145000000.0 | -104000000.0 | -68000000.0 |
| Common Stock Dividend Paid | | -249000000.0 | -65000000.0 | -143000000.0 | -292000000.0 | -365000000.0 |
| Common Stock Payments | | -647000000.0 | -274000000.0 | -6000000.0 | -76000000.0 | -136000000.0 |
| Deferred Income Tax | | 240000000.0 | -40000000.0 | -161000000.0 | -162000000.0 | 29000000.0 |
| Deferred Tax | | 240000000.0 | -40000000.0 | -161000000.0 | -162000000.0 | 29000000.0 |
| Depreciation | | 448000000.0 | 470000000.0 | 489000000.0 | 447000000.0 | 464000000.0 |
| Depreciation Amortization Depletion | | 660000000.0 | 669000000.0 | 622000000.0 | 573000000.0 | 589000000.0 |
| Depreciation And Amortization | | 660000000.0 | 669000000.0 | 622000000.0 | 573000000.0 | 589000000.0 |
| Dividend Received CFO | 2000000.0 | 8000000.0 | 0.0 | | | |
| Earnings Losses From Equity Investments | | 5000000.0 | 19000000.0 | 116000000.0 | 118000000.0 | 124000000.0 |
| End Cash Position | | 370000000.0 | 315000000.0 | 170000000.0 | 100000000.0 | 102000000.0 |
| Financing Cash Flow | | -1724000000.0 | -1188000000.0 | -916000000.0 | -1063000000.0 | -1219000000.0 |
| Free Cash Flow | | 1555000000.0 | 1179000000.0 | 1013000000.0 | 1061000000.0 | 1245000000.0 |
| Gain Loss On Investment Securities | | -83000000.0 | 126000000.0 | -115000000.0 | | -25000000.0 |
| Income Tax Paid Supplemental Data | | 136000000.0 | 165000000.0 | 218000000.0 | 227000000.0 | 156000000.0 |
| Interest Paid Supplemental Data | | 487000000.0 | 507000000.0 | 473000000.0 | 456000000.0 | 439000000.0 |
| Investing Cash Flow | | -493000000.0 | -696000000.0 | -970000000.0 | -817000000.0 | -747000000.0 |
| Issuance Of Debt | | 2900000000.0 | 2681000000.0 | 3205000000.0 | 2650000000.0 | 1462000000.0 |
| Long Term Debt Issuance | | 2900000000.0 | 2681000000.0 | 3205000000.0 | | 1462000000.0 |
| Long Term Debt Payments | | -2639000000.0 | -3782000000.0 | -3914000000.0 | -3503000000.0 | -2141000000.0 |
| Net Business Purchase And Sale | -35000000.0 | -136000000.0 | -39000000.0 | 0.0 | | |
| Net Common Stock Issuance | | -647000000.0 | -274000000.0 | -6000000.0 | -76000000.0 | -136000000.0 |
| Net Income From Continuing Operations | | 1118000000.0 | 988000000.0 | -2075000000.0 | -2261000000.0 | 805000000.0 |
| Net Investment Properties Purchase And Sale | 0.0 | 15000000.0 | 0.0 | | | |
| Net Investment Purchase And Sale | -4000000.0 | 66000000.0 | 3000000.0 | 0.0 | | |
| Net Issuance Payments Of Debt | | 261000000.0 | -1101000000.0 | -709000000.0 | -648000000.0 | -679000000.0 |
| Net Long Term Debt Issuance | | 261000000.0 | -1101000000.0 | -709000000.0 | -298000000.0 | -679000000.0 |
| Net Other Financing Charges | | -1089000000.0 | 252000000.0 | -58000000.0 | -47000000.0 | -39000000.0 |
| Net Other Investing Changes | | 3000000.0 | -46000000.0 | -242000000.0 | -102000000.0 | -94000000.0 |
| Net PPEPurchase And Sale | | -426000000.0 | -650000000.0 | -728000000.0 | -715000000.0 | -653000000.0 |
| Net Short Term Debt Issuance | -653000000.0 | 80000000.0 | -80000000.0 | 0.0 | | |
| Operating Cash Flow | | 1981000000.0 | 1829000000.0 | 1741000000.0 | 1776000000.0 | 1898000000.0 |
| Operating Gains Losses | | -78000000.0 | 145000000.0 | -11000000.0 | -9000000.0 | 99000000.0 |
| Other Non Cash Items | | 88000000.0 | 75000000.0 | 70000000.0 | 62000000.0 | 58000000.0 |
| Proceeds From Stock Option Exercised | 10000000.0 | 4000000.0 | 4000000.0 | | | |
| Provisionand Write Offof Assets | 53000000.0 | 59000000.0 | 59000000.0 | | | |
| Purchase Of Business | -35000000.0 | -136000000.0 | -39000000.0 | 0.0 | | |
| Purchase Of Investment | -4000000.0 | | | | | |
| Purchase Of PPE | | -426000000.0 | -650000000.0 | -728000000.0 | -715000000.0 | -653000000.0 |
| Repayment Of Debt | | -2639000000.0 | -3782000000.0 | -3914000000.0 | -3298000000.0 | -2141000000.0 |
| Repurchase Of Capital Stock | | -647000000.0 | -274000000.0 | -6000000.0 | -76000000.0 | -136000000.0 |
| Sale Of Investment | 0.0 | 66000000.0 | 0.0 | 0.0 | | |
| Sale Of Investment Properties | 0.0 | 15000000.0 | 0.0 | | | |
| Short Term Debt Issuance | 1177000000.0 | 2300000000.0 | 1670000000.0 | 2105000000.0 | | |
| Short Term Debt Payments | -1830000000.0 | -2220000000.0 | -1750000000.0 | -2105000000.0 | | |
| Stock Based Compensation | | 209000000.0 | 203000000.0 | 200000000.0 | 201000000.0 | 179000000.0 |
| Unrealized Gain Loss On Investment Securities | | 19000000.0 | -68000000.0 | 0.0 | 96000000.0 | 0.0 |