Payables to Brokers, Dealers, and Clearing Organizations (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Payables to Brokers, Dealers, and Clearing Organizations [Abstract]
Securities loaned	$ 1,477	[1]	$ 1,187	[1]

[1] Included in payables to brokers, dealers, and clearing organizations in the Company’s consolidated balance sheets.