Financial Instruments - Schedule of Adjusted to Equity and Other Investments without Readily Determinable Fair Values (Details) - Equity Securities Without Readily Determinable Fair Value - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Equity Securities Adjustments [Roll Forward]
Balance, beginning of the period	$ 1,555	$ 988	$ 963	$ 717
Purchases of equity and other investments	161	8	226	83
Investments received as non-cash consideration in exchange for services	0	0	8	0
Gross unrealized gains	6	0	530	165
Sales of equity and other investments	(9)	0	(14)	(1)
Gross unrealized losses and impairments	(7)	(22)	(7)	(37)
Transfers into measurement alternative	0	0	0	47
Balance, end of the period	1,706	974	1,706	974
Net unrealized (losses) gains	6	0	530	165
Transfers to readily determinable fair values	$ 0	$ 0	0	47
Private Investment
Equity Securities Adjustments [Roll Forward]
Gross unrealized gains			511	163
Transfers into measurement alternative				45
Net unrealized (losses) gains			$ 511	163
Transfers to readily determinable fair values				45
Accrued interest				$ 2

Financial Instruments - Schedule of Adjusted to Equity and Other Investments without Readily Determinable Fair Values (Details) - Equity Securities Without Readily Determinable Fair Value - USD ($)
$ in Millions

3 Months Ended

9 Months Ended

Sep. 30, 2026

Sep. 30, 2025

Sep. 30, 2026

Sep. 30, 2025

Equity Securities Adjustments [Roll Forward]

Balance, beginning of the period

$ 1,555

$ 988

$ 963

$ 717