Goodwill and Other Intangible Assets - Impairments and Changes in Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Impairments of indefinite-lived intangible assets excluding goodwill
Impairments of indefinite-lived intangible assets	$ 0	$ 0	$ 0
Changes in the carrying amount of goodwill, by segment:
Beginning balance	1,389	1,458
Foreign currency translation	27	(59)
Other adjustments	(6)	(10)
Ending balance	1,410	1,389	1,458
Advice & Wealth Management
Changes in the carrying amount of goodwill, by segment:
Beginning balance	279	279
Foreign currency translation	0	0
Other adjustments	0	0
Ending balance	279	279	279
Asset Management
Changes in the carrying amount of goodwill, by segment:
Beginning balance	1,019	1,088
Foreign currency translation	27	(59)
Other adjustments	(6)	(10)
Ending balance	1,040	1,019	1,088
Retirement & Protection Solutions
Changes in the carrying amount of goodwill, by segment:
Beginning balance	91	91
Foreign currency translation	0	0
Other adjustments	0	0
Ending balance	$ 91	$ 91	$ 91