Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period		$ 1,175	$ 1,104
Goodwill Acquired During Period	[1]		49
Foreign currency translation		(16)	24
Purchase price adjustment		(1)	(2)
Goodwill, balance at the end of the period		1,158	1,175
Advice & Wealth Management [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period		279	252
Goodwill Acquired During Period	[1]		27
Goodwill, balance at the end of the period		279	279
Asset Management [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period		805	761
Goodwill Acquired During Period	[1]		22
Foreign currency translation		(16)	24
Purchase price adjustment		(1)	(2)
Goodwill, balance at the end of the period		788	805
Annuities [Member]
Changes in the carrying amount of goodwill, by segment:
Goodwill, balance at the beginning of the period		46	46
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
Goodwill, balance at the end of the period		$ 45	$ 45

[1] Relates to the Company’s acquisitions of Investment Professionals, Inc. (“IPI”) and Lionstone Partners, LLC.