Loans & Leases (Investment in Lease Financing) (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018		Dec. 31, 2017	[1]	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable
Accumulated allowance for uncollectible minimum lease payments	$ 1,103	[1]	$ 1,196		$ 1,253	$ 1,272
Leases
Accounts, Notes, Loans and Financing Receivable
Accumulated allowance for uncollectible minimum lease payments	$ 18				$ 14

[1] Includes $ 40 and $ 62 of other short-term investments, $ 668 and $ 1,297 of portfolio loans and leases, $ (4) and $ (6) of ALLL, $ 5 and $ 7 of other assets, $ 1 and $ 2 of other liabilities and $ 606 and $ 1,190 of long-term debt from consolidated VIEs that are included in their respec tive captions above at December 31, 2018 and 2017 , respectively. For further information, refer to Note 10 .