Significant Accounting Policies - Allowance for Uncollectible Accounts (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | ||
| Beginning balance | $ (58) | $ (53) |
| Amounts charged to expense | (22) | (19) |
| Amounts written off | 15 | 16 |
| Ending balance | $ (65) | $ (56) |
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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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| X | ||||||||||
- 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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| X | ||||||||||
- 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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