Schedule II—Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Customer Receivable Reserve | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | $ 39 | $ 31 | $ 91 |
| Charged to Expenses | 61 | 49 | 27 |
| Charges Utilized/ Write-Offs | (56) | (41) | (87) |
| Balance at End of Year | 44 | 39 | 31 |
| Insurance Liability | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 61 | 47 | 51 |
| Charged to Expenses | 206 | 140 | 85 |
| Changes in Estimates for Prior Periods | 2 | (5) | 1 |
| Charges Utilized/ Write-Offs | (185) | (121) | (90) |
| Balance at End of Year | 84 | 61 | 47 |
| Valuation Allowance on Deferred Tax Assets | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 3,166 | 3,264 | 2,053 |
| Charged to Expenses | 95 | 0 | 1,211 |
| Charges Utilized/ Write-Offs | (2,897) | (98) | 0 |
| Balance at End of Year | $ 364 | $ 3,166 | $ 3,264 |