v3.7.0.1
Condensed Consolidated Statements of Financial Condition (Parenthetical) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Statement Of Financial Position [Abstract]    
Property and equipment, accumulated depreciation $ 671 $ 601
Intangible assets, accumulated amortization $ 882 $ 832
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 500,000,000 500,000,000
Common stock, shares issued 171,252,185 171,252,185
Common stock, shares outstanding 161,137,506 161,534,443
Treasury stock, common shares 10,114,679 9,717,742