Investments - Schedule of Other Investments by Asset Type (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Investments [Line Items]
Other investments	$ 1,017	$ 824
Bank loans, net
Investments [Line Items]
Other investments	383	201
Real estate
Investments [Line Items]
Other investments	621	620
Other
Investments [Line Items]
Other investments	$ 13	$ 3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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