v3.3.1.900
Variable Interest Entities Reflects adoption of ASU 2015-12 - Schedule of VIE Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Variable Interest Entity [Line Items]        
Cash and cash equivalents $ 6,083 $ 5,723 $ 4,390 $ 4,606
Investments 1,578 1,921    
Other assets 855 685    
Other liabilities (1,033) (886)    
Noncontrolling interests of consolidated VIEs (77) (119)    
Consolidated Variable Interest Entities [Member]        
Variable Interest Entity [Line Items]        
Cash and cash equivalents 148 278    
Investments 1,030 3,320    
Other assets 67 32    
Total investments and other assets 1,097 3,352    
Borrowings   (3,389)    
Other liabilities (177) (245)    
Appropriated retained earnings   19    
Noncontrolling interests of consolidated VIEs (416) $ (15)    
BlackRock's net interests in consolidated VIEs $ 652