Overview & Summary of Significant Accounting Policies - Schedule of Accrued Warranty Activity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Movement in Standard Product Warranty Accrual [Roll Forward]
Accrued warranty—beginning of period	$ 5,353	$ 3,965	$ 5,152	$ 3,505
Warranty costs incurred	(340)	(296)	(668)	(576)
Net changes in liability for pre-existing warranties, including expirations and foreign exchange impact	72	188	51	396
Provision for warranty	710	608	1,260	1,140
Accrued warranty—end of period	$ 5,795	$ 4,465	$ 5,795	$ 4,465