Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2015

Short-term Debt [Abstract]

Schedule of short-term borrowings

Short-term borrowings consisted of the following:

	December 31
	2015				Rate		2014				Rate		2013				Rate
	(dollars are in millions)
Federal funds purchased (day to day)	$	—					$	—					$	700
Securities sold under repurchase agreements(1)	2,986				0.48	%	7,707				0.32	%	12,921				0.07	%
Average during year			$	9,839	0.34				$	13,498	0.16				$	10,643	0.12
Maximum month-end balance			14,582						19,254						18,748
Commercial paper	1,978				0.46		4,772				0.23		3,379				0.22
Average during year			3,408		0.30				4,537		0.23				3,969		0.25
Maximum month-end balance			4,870						4,963						4,990
Precious metals	3						40						1,517
Other	28						276						618
Total short-term borrowings	$	4,995					$	12,795					$	19,135

⁽¹⁾  The following table presents the quarter end and average quarterly balances of securities sold under repurchase agreements:

	2015								2014								2013
	Fourth		Third		Second		First		Fourth		Third		Second		First		Fourth		Third		Second		First
	(in millions)
Quarter end balance	$	2,986	$	5,870	$	7,689	$	12,217	$	7,707	$	6,634	$	6,481	$	19,254	$	12,921	$	12,523	$	12,445	$	3,659
Average quarterly balance	7,513		6,914		12,761		12,251		8,902		9,106		16,849		19,300		14,781		11,371		8,794		7,538

Schedule of quarterly short-term borrowings

The following table presents the quarter end and average quarterly balances of securities sold under repurchase agreements:

	2015								2014								2013
	Fourth		Third		Second		First		Fourth		Third		Second		First		Fourth		Third		Second		First
	(in millions)
Quarter end balance	$	2,986	$	5,870	$	7,689	$	12,217	$	7,707	$	6,634	$	6,481	$	19,254	$	12,921	$	12,523	$	12,445	$	3,659
Average quarterly balance	7,513		6,914		12,761		12,251		8,902		9,106		16,849		19,300		14,781		11,371		8,794		7,538