Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disaggregation of Revenue [Line Items] | ||
| Receivables, net | $ 13,542 | $ 13,869 |
| Noncurrent receivables, net (included in other noncurrent assets, net) | 2,367 | 1,924 |
| Equipment Installment Plan | Notes Receivable | Unbilled Revenues | ||
| Disaggregation of Revenue [Line Items] | ||
| Receivables, net | 1,975 | 2,096 |
| Noncurrent receivables, net (included in other noncurrent assets, net) | 1,640 | 1,395 |
| Total | $ 3,615 | $ 3,491 |
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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