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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Balance Sheet - Parenthetical) (Details 2) - USD ($)
$ / shares in Units, $ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accumulated depreciation $ 1,800 $ 2,000
Common shares, par value (in dollars per share) $ 0.01 $ 0.01
Common shares, shares authorized 1,250,000,000 1,250,000,000
Common shares, shares issued 329,842,827 328,537,214
Treasury shares 205,903,593 192,206,467
Ameriprise Financial, Inc:    
Accumulated depreciation $ 952 $ 1,168
Common shares, par value (in dollars per share) $ 0.01 $ 0.01
Common shares, shares authorized 1,250,000,000 1,250,000,000
Common shares, shares issued 329,842,827 328,537,214
Treasury shares 205,903,593 192,206,467