Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies - Changes to Allowance for Estimated Uncollectible Amounts (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Opening balance | $ 156 | $ 153 | $ 160 | $ 167 |
| Provisions (reversals), net | 7 | 3 | 23 | 11 |
| Write-offs against allowance | (3) | (6) | (23) | (33) |
| Recoveries and other | 1 | 0 | 1 | 5 |
| Closing balance | $ 161 | $ 150 | $ 161 | $ 150 |
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- Definition Accounts Receivable, Allowance for Credit Loss, Recoveries and Other No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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