Other Liabilities and Accrued Expenses - Other Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Compensation and benefits	$ 3,471	$ 7,181
Noncontrolling interests	543	506
Income tax-related liabilities	1,624	1,794
Employee interests in consolidated funds	243	77
Subordinated liabilities of consolidated VIEs	751	584
Accrued expenses and other	4,557	4,220
Total	$ 11,189	$ 14,362