Other Securities Owned (Summary of Other Securities Owned) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Securities Owned [Line Items]
Other securities owned	$ 517	$ 636
Schwab Funds money market funds [Member]
Other Securities Owned [Line Items]
Other securities owned	261	329
Equity and bond mutual funds [Member]
Other Securities Owned [Line Items]
Other securities owned	208	217
State and municipal debt obligations [Member]
Other Securities Owned [Line Items]
Other securities owned	32	48
Equity, U.S. Government and corporate debt, and other securities [Member]
Other Securities Owned [Line Items]
Other securities owned	$ 16	$ 42