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Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Feb. 29, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Gains (losses) from equity method investments			$ (3)	$ 0
Equity securities without readily determinable fair value, amount	$ 91		91
Options Clearing Corporation
Schedule of Equity Method Investments [Line Items]
Gains (losses) from equity method investments	$ 3	$ 30	$ 45	$ 65
Ownership percentage	40.00%		40.00%
Bakkt
Schedule of Equity Method Investments [Line Items]
Ownership percentage	55.00%		55.00%			64.00%
Aggregate cost					$ 10
Carrying value of investments	$ 19		$ 19
Equity securities without readily determinable fair value, amount	$ 141		$ 141

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