Borrowings and Contractual Commitments Schedule of Long-term Debt Maturities (Tables)

12 Months Ended

Dec. 31, 2015

Debt Instrument [Line Items]

Schedule of Long-term Debt Instruments [Table Text Block]

	2015				2014
(Dollars in millions)	Maturity Date(s)	Interest Rate(s)	Balance		Balance
Parent Company Only:
Senior, fixed rate	2016 - 2028	2.35% - 6.00%		$3,614		$3,630
Senior, variable rate	2016 - 2019	0.48 - 1.86	331		358
Subordinated, fixed rate	2026	6.00	200		200
Junior subordinated, variable rate	2027 - 2028	1.03 - 1.31	627		627
Total Parent Company debt			4,772		4,815
Subsidiaries 1:
Senior, fixed rate 2	2016 - 2053	0.80 - 9.65	1,620		5,682
Senior, variable rate	2016 - 2043	0.44 - 2.23	1,097		742
Subordinated, fixed rate 3	2017 - 2020	5.20 - 7.25	973		1,283
Subordinated, variable rate			—		500
Total subsidiaries debt			3,690		8,207
Total long-term debt				$8,462		$13,022

¹ 81% and 90% of total subsidiary debt was issued by the Bank as of December 31, 2015 and 2014, respectively.

² Includes leases and other obligations that do not have a stated interest rate.

³ Debt recorded at fair value.

Schedule of Maturities of Long-term Debt [Table Text Block]

(Dollars in millions)	Parent Company		Subsidiaries
2016		$1,038		$73
2017	1,232		1,711
2018	874		502
2019	792		33
2020	—		226
Thereafter	836		1,145
Total		$4,772		$3,690