Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Useful lives for premises and equipment are estimated as follows:

Premises and Equipment	Useful Lives
Buildings and improvements	5-39 years
Furniture and equipment	3-10 years
Computer software	3 years
Leasehold improvements	Lesser of the useful life or the remaining fixed non-cancelable lease term

The following table presents our premises and equipment as of December 31, 2018 and 2017.Table 8.1: Components of Premises and Equipment

	December 31,
(Dollars in millions)	2018			2017
Land	$	386		$	406
Buildings and improvements	3,994			3,302
Furniture and equipment	2,018			1,901
Computer software	1,847			1,753
In progress	482			902
Total premises and equipment, gross	8,727			8,264
Less: Accumulated depreciation and amortization	(4,536		)	(4,231		)
Total premises and equipment, net	$	4,191		$	4,033