Revenue Recognition (Schedule of Allowance for Doubtful Accounts Rollforward) (Details) - SEC Schedule, 12-09, Allowance, Credit Loss - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | ||||
| Beginning balance | $ 175 | $ 183 | $ 180 | $ 186 |
| Charged to costs and expenses | 4 | 5 | 13 | 11 |
| Charged to revenue | 19 | 13 | 42 | 41 |
| Deductions and other | (13) | (21) | (50) | (58) |
| Ending balance | $ 185 | $ 180 | $ 185 | $ 180 |
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- Definition SEC Schedule, 12-09, Valuation Allowances and Reserves, Deductions And Other No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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