Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

Significant noncash activities are presented below.

Table 1.1:Supplemental Cash Flow Information

	Six months ended June 30,
(in millions)	2017		2016
Trading assets retained from securitization of MHFS	$	34,317	23,403
Transfers from loans to MHFS	3,215		3,309
Transfers from available-for-sale to held-to-maturity securities	45,408		—