Investments (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013	Dec. 31, 2012
Interest-bearing Assets
Cash and cash equivalents	$ 382		$ 477		$ 369	$ 291
Short-term investments	217		523
Fiduciary assets	3,877	[1]	3,778	[1]
Investments	143		132
Total interest-bearing assets	4,619		4,910
Investments:
Equity method investments	122		113
Other investments	13		10
Fixed-maturity securities	8		9
Investments	$ 143		$ 132

[1] Fiduciary assets include funds held on behalf of clients but does not include fiduciary receivables.