Supplemental Cash Flow Disclosures - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 34	$ 18
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	31	4
Non-cash Investing Activity:
Partnership commitments not yet remitted	2	0
Investments transferred in connection with reinsurance transaction	0	1,265
Variable Interest Entity, Primary Beneficiary [Member]
Supplemental Cash Flow Information [Abstract]
Interest Paid	17	14
Ameriprise Financial [Member]
Supplemental Cash Flow Information [Abstract]
Interest Paid	$ 55	$ 68