Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	$ 1,164us-gaap_Goodwill	$ 1,174us-gaap_Goodwill
Foreign currency translation	(19)us-gaap_GoodwillTranslationAdjustments	5us-gaap_GoodwillTranslationAdjustments
Purchase price adjustment	9	(15)
Goodwill, balance at the end of the period	1,154us-gaap_Goodwill	1,164us-gaap_Goodwill
Advice & Wealth Management [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	252	253
Purchase price adjustment	0	(1)
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	821	830
Foreign currency translation	(19)	5
Purchase price adjustment	9	(14)
Goodwill, balance at the end of the period	811	821
Annuities [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period	46	46
Purchase price adjustment	0	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
Purchase price adjustment	0	0
Goodwill, balance at the end of the period	$ 45	$ 45

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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