CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Equity:
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,250,000,000	1,250,000,000
Common shares, issued (in shares)	336,610,420	335,864,062
Treasury shares (in shares)	235,229,154	230,585,072
Ameriprise Financial
Assets
Investments, allowance for credit losses	$ 21	$ 39
Receivables, allowance for credit losses	$ 78	$ 75