Financing Receivables - Credit Quality Information - Financial Advisor Loans (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024
Financing receivables - credit quality information
Allowance for credit losses	$ 57	$ 47	$ 52	$ 54
Charge-offs	2	2
Commercial Loans
Financing receivables - credit quality information
Allowance for credit losses	45	37	41	$ 45
Charge-offs	1	$ 0
Commercial Loans \| Loans to financial advisors
Amortized cost basis by year of origination and loan-to-value ratio
2026	421		637
2025	606		310
2024	279		280
2023	252		216
2022	177		80
Prior	185		150
Total	1,920		1,673
Commercial Loans \| Loans to financial advisors \| Active
Amortized cost basis by year of origination and loan-to-value ratio
2026	421		637
2025	604		309
2024	278		280
2023	252		215
2022	176		79
Prior	176		142
Total	1,907		1,662
Commercial Loans \| Loans to financial advisors \| Terminated
Financing receivables - credit quality information
Allowance for credit losses	8		7
Amortized cost basis by year of origination and loan-to-value ratio
2026	0		0
2025	2		1
2024	1		0
2023	0		1
2022	1		1
Prior	9		8
Total	$ 13		$ 11

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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