Other Intangible Assets Schedule of Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Finite-lived intangible assets	$ 83	$ 83
Accumulated amortization	64	43
Indefinite-lived intangible assets	73	73
Total other intangible assets	156	156
Total intangible assets, accumulated amortization	64	43
Value of business acquired [Member]
Finite-lived intangible assets	62	62
Accumulated amortization	62	43
Trade name [Member]
Finite-lived intangible assets	8	8
Accumulated amortization	1
Distribution channel [Member]
Finite-lived intangible assets	13	13
Accumulated amortization	$ 1