XML 144 R130.htm IDEA: XBRL DOCUMENT v3.5.0.2
Deposits - Maturities of Time Deposits (Parenthetical) (Detail)
$ in Millions
Sep. 30, 2016
USD ($)
Deposits [Abstract]  
Total domestic time deposits greater than $250,000 $ 1,540
Total foreign time deposits greater than $250,000 $ 8,350