VARIABLE INTEREST ENTITIES - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions		Jun. 30, 2018	Dec. 31, 2017
Variable Interest Entity
Lending to special purpose entities included in loans and leases	[1],[2]	$ 113,407	$ 110,617
LIHTC Investments
Variable Interest Entity
LIHTC investment included in other assets		1,057	951
LIHTC unfunded commitments included in other liabilities		548	491
Renewable Energy
Variable Interest Entity
Renewable energy investments included in other assets		326	335
Commercial | Special Purpose Entities
Variable Interest Entity
Lending to special purpose entities included in loans and leases		$ 354	$ 0

[1] Excluded from the table above are loans held for sale totaling $710 million and $718 million as of June 30, 2018 and December 31, 2017, respectively.

[2] Mortgage loans serviced for others by the Company’s subsidiaries are not included above, and amounted to $21.6 billion and $20.3 billion at June 30, 2018 and December 31, 2017, respectively.