| | 2019-12-31 | 2021-09-30 | 2022-09-30 | 2023-09-30 | 2024-09-30 | 2025-09-30 |
| Amortization Cash Flow | | | 3183000000.0 | 3626000000.0 | 3434000000.0 | 3859000000.0 |
| Amortization Of Intangibles | | | 3183000000.0 | 3626000000.0 | 3434000000.0 | 3859000000.0 |
| Asset Impairment Charge | | | 212000000.0 | 3128000000.0 | 3511000000.0 | 871000000.0 |
| Beginning Cash Position | | | 16003000000.0 | 11661000000.0 | 14235000000.0 | 6102000000.0 |
| Capital Expenditure | | | -4943000000.0 | -4969000000.0 | -5412000000.0 | -8024000000.0 |
| Cash Dividends Paid | | | 0.0 | 0.0 | -1366000000.0 | -1803000000.0 |
| Cash Flow From Continuing Financing Activities | | | -4729000000.0 | -2724000000.0 | -15288000000.0 | -10366000000.0 |
| Cash Flow From Continuing Investing Activities | | | -5008000000.0 | -4641000000.0 | -6881000000.0 | -8043000000.0 |
| Cash Flow From Continuing Operating Activities | | | 6002000000.0 | 9866000000.0 | 13971000000.0 | 18101000000.0 |
| Cash Flow From Discontinued Operation | 603000000.0 | | | | | |
| Cash From Discontinued Financing Activities | | 0.0 | -12000000.0 | 0.0 | 0.0 | |
| Cash From Discontinued Investing Activities | | 8000000.0 | 0.0 | 0.0 | | |
| Cash From Discontinued Operating Activities | | 1000000.0 | 8000000.0 | 0.0 | 0.0 | |
| Change In Account Payable | | | 964000000.0 | -1142000000.0 | 156000000.0 | 237000000.0 |
| Change In Inventory | | | -420000000.0 | -183000000.0 | -42000000.0 | -114000000.0 |
| Change In Other Current Assets | | | -707000000.0 | -201000000.0 | 265000000.0 | -42000000.0 |
| Change In Other Working Capital | | | 46000000.0 | 1345000000.0 | -1427000000.0 | -228000000.0 |
| Change In Payable | | | 964000000.0 | -1142000000.0 | 156000000.0 | 237000000.0 |
| Change In Payables And Accrued Expense | | | 964000000.0 | -1142000000.0 | 156000000.0 | 237000000.0 |
| Change In Receivables | | | 605000000.0 | 358000000.0 | -565000000.0 | -283000000.0 |
| Change In Working Capital | | | 488000000.0 | 177000000.0 | -1613000000.0 | -430000000.0 |
| Changes In Cash | | | -3739000000.0 | 2501000000.0 | -8198000000.0 | -308000000.0 |
| Common Stock Dividend Paid | | | 0.0 | 0.0 | -1366000000.0 | -1803000000.0 |
| Common Stock Payments | | | 0.0 | 0.0 | -2992000000.0 | -3500000000.0 |
| Deferred Income Tax | | | 200000000.0 | -1346000000.0 | -821000000.0 | -2739000000.0 |
| Deferred Tax | | | 200000000.0 | -1346000000.0 | -821000000.0 | -2739000000.0 |
| Depreciation | | | 1980000000.0 | 1743000000.0 | 1556000000.0 | 1467000000.0 |
| Depreciation Amortization Depletion | | | 5163000000.0 | 5369000000.0 | 4990000000.0 | 5326000000.0 |
| Depreciation And Amortization | | | 5163000000.0 | 5369000000.0 | 4990000000.0 | 5326000000.0 |
| Dividend Received CFO | | | 779000000.0 | 720000000.0 | 437000000.0 | 145000000.0 |
| Earnings Losses From Equity Investments | | | -816000000.0 | -782000000.0 | -575000000.0 | -295000000.0 |
| Effect Of Exchange Rate Changes | | | -603000000.0 | 73000000.0 | 65000000.0 | 5000000.0 |
| End Cash Position | | | 11661000000.0 | 14235000000.0 | 6102000000.0 | 5799000000.0 |
| Financing Cash Flow | | | -4741000000.0 | -2724000000.0 | -15288000000.0 | -10366000000.0 |
| Free Cash Flow | | | 1067000000.0 | 4897000000.0 | 8559000000.0 | 10077000000.0 |
| Gain Loss On Investment Securities | | -332000000.0 | 714000000.0 | -166000000.0 | 5000000.0 | |
| Income Tax Paid Supplemental Data | | | 1097000000.0 | 1193000000.0 | 3963000000.0 | 1221000000.0 |
| Interest Paid Supplemental Data | | | 1685000000.0 | 2110000000.0 | 2134000000.0 | 2050000000.0 |
| Investing Cash Flow | | | -5008000000.0 | -4641000000.0 | -6881000000.0 | -8043000000.0 |
| Issuance Of Debt | | | 333000000.0 | 83000000.0 | 132000000.0 | 1057000000.0 |
| Long Term Debt Issuance | | | 333000000.0 | 83000000.0 | 132000000.0 | 1057000000.0 |
| Long Term Debt Payments | | | -4016000000.0 | -1675000000.0 | -3064000000.0 | -3735000000.0 |
| Net Business Purchase And Sale | | 0.0 | | | | |
| Net Common Stock Issuance | | | 0.0 | 0.0 | -2992000000.0 | -3500000000.0 |
| Net Income From Continuing Operations | | | 3553000000.0 | 3390000000.0 | 5773000000.0 | 13431000000.0 |
| Net Investment Purchase And Sale | | | 52000000.0 | 458000000.0 | -1401000000.0 | -94000000.0 |
| Net Issuance Payments Of Debt | | | -4017000000.0 | -1783000000.0 | -1400000000.0 | -3621000000.0 |
| Net Long Term Debt Issuance | | | -3683000000.0 | -1592000000.0 | -2932000000.0 | -2678000000.0 |
| Net Other Financing Charges | | | -712000000.0 | -941000000.0 | -9530000000.0 | -1442000000.0 |
| Net Other Investing Changes | | | -117000000.0 | -130000000.0 | -68000000.0 | 75000000.0 |
| Net PPEPurchase And Sale | | | -4943000000.0 | -4969000000.0 | -5412000000.0 | -8024000000.0 |
| Net Short Term Debt Issuance | | | -334000000.0 | -191000000.0 | 1532000000.0 | -943000000.0 |
| Operating Cash Flow | | | 6010000000.0 | 9866000000.0 | 13971000000.0 | 18101000000.0 |
| Operating Gains Losses | | | 518000000.0 | -782000000.0 | -575000000.0 | -295000000.0 |
| Other Non Cash Items | | | -5888000000.0 | -1933000000.0 | 903000000.0 | 429000000.0 |
| Pension And Employee Benefit Expense | | 816000000.0 | 620000000.0 | 4000000.0 | -96000000.0 | |
| Proceeds From Stock Option Exercised | | 435000000.0 | 127000000.0 | 52000000.0 | | |
| Purchase Of Business | | 0.0 | | | | |
| Purchase Of Investment | | | 0.0 | 0.0 | -1506000000.0 | -98000000.0 |
| Purchase Of PPE | | | -4943000000.0 | -4969000000.0 | -5412000000.0 | -8024000000.0 |
| Repayment Of Debt | | | -4016000000.0 | -1675000000.0 | -3064000000.0 | -3735000000.0 |
| Repurchase Of Capital Stock | | | 0.0 | 0.0 | -2992000000.0 | -3500000000.0 |
| Sale Of Investment | | | 52000000.0 | 458000000.0 | 105000000.0 | 4000000.0 |
| Stock Based Compensation | | | 977000000.0 | 1143000000.0 | 1366000000.0 | 1363000000.0 |