Variable Interest Entities - Changes in Level 3 Assets and Liabilities (Details 3) - Consolidated investment entities - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Syndicated loans
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, at the beginning of the period		$ 155	$ 302	$ 92	$ 143
Total gains (losses) included in net income	[1]		18	2	(21)
Purchases		22	2	81	45
Sales		(24)	(8)	(34)	(15)
Settlements		(19)	(16)	(39)	(26)
Transfers into Level 3		28	102	85	350
Transfers out of Level 3		(50)	(189)	(75)	(265)
Balance, at the end of the period		112	211	112	211
Changes in unrealized gains (losses) included in income relating to assets held at end of period	[1]	(1)	$ 17	(1)	$ 3
Other assets
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, at the beginning of the period				2
Transfers out of Level 3				(2)
Balance, at the end of the period		$ 0		$ 0

[1] Included in net investment income in the Consolidated Statements of Operations.