XML 149 R99.htm IDEA: XBRL DOCUMENT v3.6.0.2
Debt Debt (Line of Credit Narrative) (Details 4) - Ameriprise Financial [Member] - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Line of Credit Facility [Line Items]    
Current borrowing capacity under the line of credit $ 500  
Maximum borrowing capacity under the line of credit 750  
Borrowings outstanding under credit facility 0 $ 0
Outstanding letters of credit issued against credit facility $ 1