Fair Values of Assets and Liabilities - Changes in Level 3 Liabilities (Details) - Ameriprise Financial - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Changes in Level 3 liabilities measured at fair value on a recurring basis
Net increase (decrease) to pretax income from adjustment for nonperformance risk on the fair value of embedded derivatives	$ (17)	$ 6	$ 44	$ 126
Policyholder account balances, future policy benefits and claims embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	1,412	402	646	1,367
Total (gains) losses included in Net income	(244)	(196)	540	(1,111)
Other comprehensive income (loss)	0	0		0
Issues	41	37	112	63
Settlements	(77)	(24)	(166)	(100)
Balance, ending	1,132	219	1,132	219
Changes in unrealized (gains) losses in net income relating to liabilities held at end of period	(244)	(195)	537	(1,101)
Fixed deferred indexed annuities embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	46	45	44	56
Total (gains) losses included in Net income	0	(1)	3	(10)
Other comprehensive income (loss)	0	0		0
Issues	0	0	0	0
Settlements	(1)	(1)	(2)	(3)
Balance, ending	45	43	45	43
Changes in unrealized (gains) losses in net income relating to liabilities held at end of period	0	0	0	0
IUL embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	809	719	739	905
Total (gains) losses included in Net income	2	(22)	94	(162)
Other comprehensive income (loss)	0	0		0
Issues	6	18	46	26
Settlements	(30)	(26)	(92)	(80)
Balance, ending	787	689	787	689
Changes in unrealized (gains) losses in net income relating to liabilities held at end of period	2	(22)	94	(162)
Structured variable annuity embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	557	(362)	(137)	406
Total (gains) losses included in Net income	(246)	(173)	443	(939)
Other comprehensive income (loss)	0	0		0
Issues	35	19	66	37
Settlements	(46)	3	(72)	(17)
Balance, ending	300	(513)	300	(513)
Changes in unrealized (gains) losses in net income relating to liabilities held at end of period	(246)	(173)	443	(939)
Other liabilities
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	78	61	62	61
Total (gains) losses included in Net income	0	0	1	0
Other comprehensive income (loss)	(1)	(2)		(5)
Issues	7	12	40	26
Settlements	(7)	(8)	(26)	(19)
Balance, ending	77	63	77	63
Changes in unrealized (gains) losses in net income relating to liabilities held at end of period	$ 0	$ 0	$ 0	$ 0