Overview & Summary of Significant Accounting Policies - Schedule of Accrued Warranty Activity (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Movement in Standard Product Warranty Accrual [Roll Forward] | ||||
| Accrued warranty—beginning of period | $ 5,795 | $ 4,465 | $ 5,152 | $ 3,505 |
| Warranty costs incurred | (380) | (335) | (1,048) | (911) |
| Net changes in liability for pre-existing warranties, including expirations and foreign exchange impact | 231 | 15 | 295 | 426 |
| Provision for warranty | 717 | 577 | 1,964 | 1,702 |
| Accrued warranty—end of period | $ 6,363 | $ 4,722 | $ 6,363 | $ 4,722 |