Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Summary of Short-Term Borrowings

The following table is a summary of short-term borrowings for the last three years:

	2018					2017					2016
(Dollars in Millions)	Amount		Rate			Amount		Rate			Amount		Rate
At year-end
Federal funds purchased	$	458		2.05	%	$	252		.77	%	$	447		.30	%
Securities sold under agreements to repurchase		2,582		2.20			803		.61			801		.12
Commercial paper		6,940		1.35			8,303		.68			10,010		.30
Other short-term borrowings		4,159		2.68			7,293		2.13			2,705		1.00
Total	$	14,139		1.92	%	$	16,651		1.31	%	$	13,963		.43	%
Average for the year
Federal funds purchased	$	1,070		1.70	%	$	528		.86	%	$	1,015		.30	%
Securities sold under agreements to repurchase		2,279		1.87			917		.44			891		.18
Commercial paper		6,929		.94			8,236		.49			14,827		.26
Other short-term borrowings		11,512		2.27			5,341		1.90			3,173		1.67
Total	$	21,790		1.78	%	$	15,022		1.00	%	$	19,906		.48	%
Maximum month-end balance
Federal funds purchased	$	4,532				$	600				$	2,487
Securities sold under agreements to repurchase		3,225					927					1,177
Commercial paper		7,846					9,950					21,441
Other short-term borrowings		16,588					7,293					6,771

(a) Interest and rates are presented on a fully taxable-equivalent basis utilizing a tax rate of 21 percent for 2018 and 35 percent for 2017 and 2016.