Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions |
Sep. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Disaggregation of Revenue [Line Items] | ||
| Receivables, net | $ 14,036 | $ 13,813 |
| Noncurrent receivables, net (included in other noncurrent assets, net) | 1,782 | 1,914 |
| Equipment Installment Plan | Notes Receivable | Unbilled Revenues | ||
| Disaggregation of Revenue [Line Items] | ||
| Receivables, net | 1,808 | 1,695 |
| Noncurrent receivables, net (included in other noncurrent assets, net) | 1,199 | 1,223 |
| Total | $ 3,008 | $ 2,918 |
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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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