Fair Values (Details Textual) - Fair Value, Nonrecurring - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of equity securities without readily determinable fair values	$ 1,000		$ 1,000		$ 900
Net upward adjustments of equity securities without readily determinable fair values	91	$ 67	91	$ 67
Net downward adjustments of equity securities without readily determinable fair values	0	$ 11	38	$ 11
Cumulative net unrealized gains for equity investments without readily determinable fair values	1,200		1,200
Cumulative net unrealized losses for equity investments without readily determinable fair values	500		500
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of equity securities without readily determinable fair values	$ 400		$ 400		$ 1