| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 |
| Amortization Cash Flow | | 73000000.0 | 96000000.0 | 67000000.0 | 60000000.0 | 59000000.0 |
| Amortization Of Intangibles | | 73000000.0 | 96000000.0 | 67000000.0 | 60000000.0 | 59000000.0 |
| Asset Impairment Charge | | 0.0 | 248000000.0 | 261000000.0 | 437000000.0 | 396000000.0 |
| Beginning Cash Position | | 4673000000.0 | 3394000000.0 | 5061000000.0 | 4694000000.0 | 5501000000.0 |
| Capital Expenditure | | -1342000000.0 | -1137000000.0 | -1004000000.0 | -575000000.0 | -493000000.0 |
| Cash Dividends Paid | | -354000000.0 | -392000000.0 | -431000000.0 | -431000000.0 | -429000000.0 |
| Cash Flow From Continuing Financing Activities | | 3015000000.0 | -1914000000.0 | -856000000.0 | -2487000000.0 | -3518000000.0 |
| Cash Flow From Continuing Investing Activities | | -6556000000.0 | -1006000000.0 | -3492000000.0 | -2952000000.0 | -875000000.0 |
| Cash Flow From Continuing Operating Activities | | 2262000000.0 | 4587000000.0 | 3981000000.0 | 2966000000.0 | 2932000000.0 |
| Change In Account Payable | | 104000000.0 | 975000000.0 | 915000000.0 | 199000000.0 | -386000000.0 |
| Change In Other Current Assets | | -491000000.0 | -463000000.0 | -1318000000.0 | 1003000000.0 | -247000000.0 |
| Change In Other Current Liabilities | | 176000000.0 | 44000000.0 | 841000000.0 | -373000000.0 | 964000000.0 |
| Change In Other Working Capital | | -65000000.0 | 32000000.0 | -20000000.0 | -6000000.0 | -39000000.0 |
| Change In Payable | | 104000000.0 | 975000000.0 | 915000000.0 | 199000000.0 | -386000000.0 |
| Change In Payables And Accrued Expense | | 104000000.0 | 975000000.0 | 915000000.0 | 199000000.0 | -386000000.0 |
| Change In Receivables | | -280000000.0 | -54000000.0 | -337000000.0 | -669000000.0 | -414000000.0 |
| Change In Working Capital | | -556000000.0 | 534000000.0 | 81000000.0 | 154000000.0 | -122000000.0 |
| Changes In Account Receivables | -85000000.0 | | | | | |
| Changes In Cash | | -1279000000.0 | 1667000000.0 | -367000000.0 | -2473000000.0 | -1461000000.0 |
| Common Stock Dividend Paid | | -354000000.0 | -392000000.0 | -431000000.0 | -431000000.0 | -429000000.0 |
| Common Stock Payments | | -79000000.0 | -2096000000.0 | -1573000000.0 | -817000000.0 | -160000000.0 |
| Deferred Income Tax | | 15000000.0 | -100000000.0 | -167000000.0 | -192000000.0 | |
| Deferred Tax | | 15000000.0 | -100000000.0 | -167000000.0 | -192000000.0 | |
| Depreciation | | 640000000.0 | 749000000.0 | 850000000.0 | 908000000.0 | 850000000.0 |
| Depreciation And Amortization | | 713000000.0 | 845000000.0 | 917000000.0 | 968000000.0 | 909000000.0 |
| Earnings Losses From Equity Investments | | -1194000000.0 | 4000000.0 | 63000000.0 | 94000000.0 | 115000000.0 |
| End Cash Position | | 3394000000.0 | 5061000000.0 | 4694000000.0 | 2221000000.0 | 4040000000.0 |
| Financing Cash Flow | | 3015000000.0 | -1914000000.0 | -856000000.0 | -2487000000.0 | -3518000000.0 |
| Free Cash Flow | | 920000000.0 | 3450000000.0 | 2977000000.0 | 2391000000.0 | 2439000000.0 |
| Gain Loss On Investment Securities | | 130000000.0 | 205000000.0 | 54000000.0 | -24000000.0 | |
| Gain Loss On Sale Of Business | | 0.0 | -237000000.0 | 0.0 | 0.0 | |
| Income Tax Paid Supplemental Data | | 227000000.0 | 758000000.0 | 997000000.0 | 570000000.0 | 237000000.0 |
| Interest Paid Supplemental Data | | 285000000.0 | 354000000.0 | 394000000.0 | 584000000.0 | 627000000.0 |
| Investing Cash Flow | | -6556000000.0 | -1006000000.0 | -3492000000.0 | -2952000000.0 | -875000000.0 |
| Issuance Of Debt | | 5836000000.0 | 1982000000.0 | 2855000000.0 | 2232000000.0 | 1481000000.0 |
| Long Term Debt Issuance | | 5484000000.0 | 1982000000.0 | 2544000000.0 | 2232000000.0 | 1481000000.0 |
| Long Term Debt Payments | | -2078000000.0 | -3000000000.0 | -2332000000.0 | -1107000000.0 | -1844000000.0 |
| Net Business Purchase And Sale | | -4187000000.0 | 2364000000.0 | -233000000.0 | -89000000.0 | -73000000.0 |
| Net Common Stock Issuance | | -79000000.0 | -2096000000.0 | -1573000000.0 | -817000000.0 | -160000000.0 |
| Net Income From Continuing Operations | | 2934000000.0 | 2802000000.0 | 2484000000.0 | 1214000000.0 | 1582000000.0 |
| Net Investment Purchase And Sale | | -1053000000.0 | -2250000000.0 | -2465000000.0 | -1827000000.0 | 121000000.0 |
| Net Issuance Payments Of Debt | | 3758000000.0 | -1394000000.0 | 423000000.0 | 218000000.0 | -380000000.0 |
| Net Long Term Debt Issuance | | 3406000000.0 | -1018000000.0 | 212000000.0 | 1125000000.0 | -363000000.0 |
| Net Other Financing Charges | | -310000000.0 | 1968000000.0 | 725000000.0 | -1875000000.0 | -2936000000.0 |
| Net Other Investing Changes | | | | | -468000000.0 | -437000000.0 |
| Net PPEPurchase And Sale | | -1316000000.0 | -1120000000.0 | -794000000.0 | -568000000.0 | -486000000.0 |
| Net Short Term Debt Issuance | | 352000000.0 | -376000000.0 | 211000000.0 | -907000000.0 | -17000000.0 |
| Operating Cash Flow | | 2262000000.0 | 4587000000.0 | 3981000000.0 | 2966000000.0 | 2932000000.0 |
| Operating Gains Losses | | -1064000000.0 | -28000000.0 | 117000000.0 | 70000000.0 | 78000000.0 |
| Other Non Cash Items | | 40000000.0 | 70000000.0 | 113000000.0 | 108000000.0 | |
| Proceeds From Stock Option Exercised | 49000000.0 | 21000000.0 | | | | |
| Purchase Of Business | | -4187000000.0 | -337000000.0 | -233000000.0 | -89000000.0 | -73000000.0 |
| Purchase Of Investment | | -7197000000.0 | -6049000000.0 | -7552000000.0 | -8185000000.0 | -7243000000.0 |
| Purchase Of PPE | | -1342000000.0 | -1137000000.0 | -1004000000.0 | -575000000.0 | -493000000.0 |
| Repayment Of Debt | | -2078000000.0 | -3376000000.0 | -2432000000.0 | -2014000000.0 | -1861000000.0 |
| Repurchase Of Capital Stock | | -79000000.0 | -2096000000.0 | -1573000000.0 | -817000000.0 | -160000000.0 |
| Sale Of Business | | 0.0 | 2701000000.0 | 0.0 | 0.0 | |
| Sale Of Investment | | 6144000000.0 | 3799000000.0 | 5087000000.0 | 6358000000.0 | 7364000000.0 |
| Sale Of PPE | | 26000000.0 | 17000000.0 | 210000000.0 | 7000000.0 | |
| Short Term Debt Issuance | | 352000000.0 | 0.0 | 311000000.0 | 0.0 | |
| Short Term Debt Payments | | 0.0 | -376000000.0 | -100000000.0 | -907000000.0 | -17000000.0 |
| Stock Based Compensation | | 180000000.0 | 216000000.0 | 175000000.0 | 207000000.0 | 217000000.0 |