Regulatory Requirements - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	$ 468,784	$ 493,178
Charles Schwab Premier Bank, SSB
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	26,000
Charles Schwab Trust Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	$ 10,200

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details