| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 |
| Amortization Cash Flow | | 218000000.0 | 169000000.0 | 184000000.0 | 159000000.0 | |
| Amortization Of Intangibles | | 218000000.0 | 169000000.0 | 184000000.0 | 159000000.0 | |
| Asset Impairment Charge | | 213000000.0 | 27498000000.0 | 1193000000.0 | 5075000000.0 | 4940000000.0 |
| Beginning Cash Position | | 9870000000.0 | 21316000000.0 | 3793000000.0 | 6833000000.0 | 3203000000.0 |
| Capital Expenditure | | -15545000000.0 | -19626000000.0 | -17853000000.0 | -20263000000.0 | -21319000000.0 |
| Capital Expenditure Reported | | -15545000000.0 | -19626000000.0 | -17853000000.0 | -20263000000.0 | -21319000000.0 |
| Cash Dividends Paid | | -15068000000.0 | -9859000000.0 | -8136000000.0 | -8208000000.0 | -8210000000.0 |
| Cash Flow From Continuing Financing Activities | | 1894000000.0 | -59564000000.0 | -15614000000.0 | -24708000000.0 | -12013000000.0 |
| Cash Flow From Continuing Investing Activities | | -32489000000.0 | -26899000000.0 | -19660000000.0 | -17490000000.0 | -21557000000.0 |
| Cash Flow From Continuing Operating Activities | | 37170000000.0 | 35812000000.0 | 38314000000.0 | 38771000000.0 | 40943000000.0 |
| Cash From Discontinued Financing Activities | | -316000000.0 | 35823000000.0 | 0.0 | 0.0 | |
| Cash From Discontinued Investing Activities | | 399000000.0 | 1094000000.0 | 0.0 | 0.0 | |
| Cash From Discontinued Operating Activities | | 4788000000.0 | -3789000000.0 | 0.0 | 0.0 | |
| Change In Inventory | | | -674000000.0 | -642000000.0 | -383000000.0 | -1119000000.0 |
| Change In Other Current Assets | -2138000000.0 | -1288000000.0 | -674000000.0 | -642000000.0 | | |
| Change In Other Working Capital | | 18000000.0 | -947000000.0 | 1000000.0 | 497000000.0 | 184000000.0 |
| Change In Payables And Accrued Expense | | -1570000000.0 | -1109000000.0 | -1764000000.0 | -810000000.0 | -489000000.0 |
| Change In Receivables | | -1396000000.0 | 881000000.0 | -51000000.0 | -1723000000.0 | -1285000000.0 |
| Change In Working Capital | | -4236000000.0 | -1849000000.0 | -2456000000.0 | -2419000000.0 | -2709000000.0 |
| Changes In Account Receivables | | -1125000000.0 | 727000000.0 | 82000000.0 | 123000000.0 | -254000000.0 |
| Changes In Cash | | 11446000000.0 | -17523000000.0 | 3040000000.0 | -3427000000.0 | 7373000000.0 |
| Common Stock Dividend Paid | | -15068000000.0 | -9859000000.0 | -8136000000.0 | -8208000000.0 | |
| Common Stock Issuance | | 96000000.0 | 28000000.0 | 3000000.0 | 15000000.0 | 32000000.0 |
| Common Stock Payments | | -202000000.0 | -890000000.0 | -194000000.0 | -215000000.0 | -1235000000.0 |
| Deferred Income Tax | | 7412000000.0 | 2975000000.0 | 3037000000.0 | 1570000000.0 | |
| Deferred Tax | | 7412000000.0 | 2975000000.0 | 3037000000.0 | 1570000000.0 | |
| Depreciation | | 17634000000.0 | 17852000000.0 | 18593000000.0 | 20421000000.0 | |
| Depreciation Amortization Depletion | | 17852000000.0 | 18021000000.0 | 18777000000.0 | 20580000000.0 | 20902000000.0 |
| Depreciation And Amortization | | 17852000000.0 | 18021000000.0 | 18777000000.0 | 20580000000.0 | 20902000000.0 |
| Dividends Received CFI | | 1323000000.0 | 2649000000.0 | 2049000000.0 | 928000000.0 | 342000000.0 |
| Earnings Losses From Equity Investments | 38000000.0 | 184000000.0 | | | | |
| End Cash Position | | 21316000000.0 | 3793000000.0 | 6833000000.0 | 3406000000.0 | 10576000000.0 |
| Financing Cash Flow | | 1578000000.0 | -23741000000.0 | -15614000000.0 | -24708000000.0 | -12013000000.0 |
| Free Cash Flow | | 26413000000.0 | 12397000000.0 | 20461000000.0 | 18508000000.0 | 19624000000.0 |
| Gain Loss On Investment Securities | | -369000000.0 | 381000000.0 | 441000000.0 | 80000000.0 | -136000000.0 |
| Income Tax Paid Supplemental Data | | 252000000.0 | 592000000.0 | 1599000000.0 | 2456000000.0 | 3037000000.0 |
| Interest Paid Supplemental Data | | 7485000000.0 | 7772000000.0 | 7370000000.0 | 7132000000.0 | 6804000000.0 |
| Investing Cash Flow | | -32090000000.0 | -25805000000.0 | -19660000000.0 | -17490000000.0 | -21557000000.0 |
| Issuance Of Capital Stock | | 96000000.0 | 28000000.0 | 3000000.0 | 15000000.0 | 32000000.0 |
| Issuance Of Debt | | 34444000000.0 | 6934000000.0 | 15410000000.0 | 510000000.0 | 3760000000.0 |
| Long Term Debt Issuance | | 9931000000.0 | 2979000000.0 | 10004000000.0 | 19000000.0 | 6446000000.0 |
| Long Term Debt Payments | | -3039000000.0 | -25118000000.0 | -12044000000.0 | -10297000000.0 | -5007000000.0 |
| Net Business Purchase And Sale | | -18317000000.0 | -10001000000.0 | -2870000000.0 | -305000000.0 | -57000000.0 |
| Net Common Stock Issuance | | -106000000.0 | -862000000.0 | -191000000.0 | -200000000.0 | -1203000000.0 |
| Net Income From Continuing Operations | | 23776000000.0 | -6874000000.0 | 15623000000.0 | 12253000000.0 | 14106000000.0 |
| Net Investment Purchase And Sale | | 44000000.0 | 82000000.0 | -902000000.0 | 2575000000.0 | 344000000.0 |
| Net Issuance Payments Of Debt | | 23895000000.0 | -38259000000.0 | -1093000000.0 | -12274000000.0 | -1247000000.0 |
| Net Long Term Debt Issuance | | 6892000000.0 | -22139000000.0 | -2040000000.0 | -10278000000.0 | 1439000000.0 |
| Net Other Financing Charges | | -6827000000.0 | -10584000000.0 | -6194000000.0 | -4026000000.0 | 722000000.0 |
| Net Other Investing Changes | | 6000000.0 | -3000000.0 | -84000000.0 | -425000000.0 | -867000000.0 |
| Net PPEPurchase And Sale | -15675000000.0 | | | | | |
| Net Preferred Stock Issuance | 3869000000.0 | 0.0 | 0.0 | | | |
| Net Short Term Debt Issuance | | 17003000000.0 | -16120000000.0 | 947000000.0 | -1996000000.0 | -2686000000.0 |
| Operating Cash Flow | | 41958000000.0 | 32023000000.0 | 38314000000.0 | 38771000000.0 | 40943000000.0 |
| Operating Gains Losses | | -8369000000.0 | -4855000000.0 | -517000000.0 | -1747000000.0 | -1816000000.0 |
| Other Non Cash Items | | -719000000.0 | -969000000.0 | 688000000.0 | 1490000000.0 | 1886000000.0 |
| Pension And Employee Benefit Expense | | -8000000000.0 | -5236000000.0 | -958000000.0 | -1827000000.0 | -1680000000.0 |
| Preferred Stock Dividend Paid | -1950000000.0 | | | | | |
| Preferred Stock Issuance | 3869000000.0 | 0.0 | 0.0 | | | |
| Preferred Stock Payments | -1950000000.0 | 0.0 | -2665000000.0 | | | |
| Provisionand Write Offof Assets | | 1241000000.0 | 1865000000.0 | 1969000000.0 | 1969000000.0 | 2064000000.0 |
| Purchase Of Business | | -25453000000.0 | -10200000000.0 | -2942000000.0 | -380000000.0 | -158000000.0 |
| Purchase Of PPE | -15675000000.0 | | | | | |
| Repayment Of Debt | | -10549000000.0 | -45193000000.0 | -16503000000.0 | -12784000000.0 | -5007000000.0 |
| Repurchase Of Capital Stock | | -202000000.0 | -890000000.0 | -194000000.0 | -215000000.0 | -3310000000.0 |
| Sale Of Business | | 7136000000.0 | 199000000.0 | 72000000.0 | 75000000.0 | 101000000.0 |
| Short Term Debt Issuance | | 24513000000.0 | 3955000000.0 | 5406000000.0 | 491000000.0 | -2686000000.0 |
| Short Term Debt Payments | | -7510000000.0 | -20075000000.0 | -4459000000.0 | -2487000000.0 | 0.0 |