XML 87 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
Basis of Presentation and Accounting Policies Level 4 (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Effective Income Tax Rate Reconciliation, Deduction, Amount $ 4 $ 12    
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation   0 $ 2  
Distribution Fees   $ 139   $ 184