Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Revenue disaggregated by segment
Contract costs asset	$ 27	$ 33
Receivables for revenue from contracts with customers	504	537
Financial planning fees
Revenue disaggregated by segment
Contract liabilities	156	160
Capitalized contract costs	126	129
Custodial service fees
Revenue disaggregated by segment
Contract liabilities	$ 13	$ 0

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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