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Other Assets - Balances (Details) - Investment Management - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Equity Method Investments
Investments	$ 2,042		$ 2,042		$ 1,869
Income (loss)	$ 68	$ 75	$ 189	$ 185

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