Debt - Schedule of Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total Interest Expense	$ 618	$ 474	$ 268
Asset Management
Debt Instrument [Line Items]
Total Interest Expense	256	226	145
Retirement Services
Debt Instrument [Line Items]
Total Interest Expense	$ 362	$ 248	$ 123

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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+ Details