Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Cash and cash equivalents	$ 305	$ 382	$ 633	$ 836
Cash and investments segregated	506	281	918	669
Receivables from brokerage clients	1,332	1,351	2,714	2,611
Available for sale securities	405	555	838	1,149
Held to maturity securities	602	658	1,224	1,348
Bank loans	518	460	1,011	900
Securities lending revenue	96	95	156	171
Other interest revenue	23	35	50	74
Interest revenue	3,787	3,817	7,544	7,758
Bank deposits	(326)	(840)	(762)	(1,761)
Payables to brokers, dealers, and clearing organizations	(167)	(57)	(304)	(112)
Payables to brokerage clients	(69)	(77)	(120)	(150)
Other short-term borrowings	(87)	(129)	(169)	(232)
Federal Home Loan Bank borrowings	(110)	(348)	(243)	(678)
Long-term debt	(206)	(208)	(418)	(432)
Other interest expense	0	0	0	(2)
Interest expense	(965)	(1,659)	(2,016)	(3,367)
Net interest revenue	2,822	2,158	5,528	4,391
Total net revenues	5,851	4,690	11,450	9,430
Asset management and administration fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	1,570	1,383	3,100	2,731
Mutual funds, ETFs, and CTFs
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	884	785	1,749	1,543
Managed investing solutions
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	589	510	1,158	1,013
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	97	88	193	175
Trading revenue
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	952	777	1,860	1,594
Commissions
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	431	383	862	796
Order flow revenue
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	466	357	909	709
Principal transactions
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	55	37	89	89
Bank deposit account fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	247	153	492	336
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 260	$ 219	$ 470	$ 378

SCHWAB CHARLES CORP 10-Q