Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	$ 1,154	$ 1,164
Foreign currency translation	(15)	(19)
Purchase price adjustment	(2)	9
Goodwill, balance at the end of the period	1,137	1,154
Advice & Wealth Management [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	252	252
Foreign currency translation	0	0
Purchase price adjustment		0
Goodwill, balance at the end of the period	252	252
Asset Management [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	811	821
Foreign currency translation	(15)	(19)
Purchase price adjustment	(2)	9
Goodwill, balance at the end of the period	794	811
Annuities [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	46	46
Foreign currency translation	0	0
Purchase price adjustment		0
Goodwill, balance at the end of the period	46	46
Protection [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	45	45
Foreign currency translation	0	0
Purchase price adjustment		0
Goodwill, balance at the end of the period	$ 45	$ 45