Consolidated Balance Sheets - USD ($)		Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
ASSETS
Cash and due from banks		$ 470,000,000	$ 653,000,000	$ 651,000,000
Short-term investments		1,964,000,000	4,269,000,000	2,342,000,000
Trading account assets		811,000,000	750,000,000	965,000,000
Securities available for sale		14,376,000,000	13,360,000,000	12,245,000,000
Held-to-maturity securities (fair value: $4,940, $4,974, and $4,911)		4,936,000,000	5,015,000,000	4,997,000,000
Other investments		691,000,000	760,000,000	822,000,000
Loans, net of unearned income of $645, $682, and $685		60,085,000,000	57,381,000,000	56,155,000,000
Less: Allowance for loan and lease losses		790,000,000	794,000,000	804,000,000
Net loans		59,295,000,000	56,587,000,000	55,351,000,000
Loans held for sale		916,000,000	734,000,000	784,000,000
Premises and equipment		771,000,000	841,000,000	832,000,000
Operating lease assets		315,000,000	330,000,000	304,000,000
Goodwill		1,060,000,000	1,057,000,000	1,051,000,000
Other intangible assets		74,000,000	101,000,000	126,000,000
Corporate-owned life insurance		3,516,000,000	3,479,000,000	3,456,000,000
Derivative assets		793,000,000	609,000,000	413,000,000
Accrued income and other assets (including $1, $1, and $1 of consolidated LIHTC guaranteed funds VIEs, see Note 9) (a)	[1]	3,348,000,000	2,952,000,000	3,024,000,000
Discontinued assets (including $169 of portfolio loans held for sale at fair value and $191 and $201 of portfolio loans at fair value, see Note 11)		2,086,000,000	2,324,000,000	2,421,000,000
Total assets		95,422,000,000	93,821,000,000	89,784,000,000
Deposits in domestic offices:
NOW and money market deposit accounts		37,301,000,000	34,536,000,000	33,941,000,000
Savings deposits		2,338,000,000	2,371,000,000	2,390,000,000
Certificates of deposit ($100,000 or more)		2,001,000,000	2,040,000,000	2,533,000,000
Other time deposits		3,020,000,000	3,259,000,000	3,338,000,000
Total interest-bearing deposits		44,660,000,000	42,206,000,000	42,202,000,000
Noninterest-bearing deposits		25,985,000,000	29,228,000,000	25,697,000,000
Deposits in foreign office - interest-bearing		428,000,000	564,000,000	557,000,000
Total deposits		71,073,000,000	71,998,000,000	68,456,000,000
Federal funds purchased and securities sold under repurchase agreements		407,000,000	575,000,000	657,000,000
Bank notes and other short-term borrowings		677,000,000	423,000,000	996,000,000
Derivative liabilities		676,000,000	784,000,000	384,000,000
Accrued expense and other liabilities (including $1, $1, and $2 of consolidated LIHTC guaranteed funds VIEs, see Note 9) (a)		1,562,000,000	1,621,000,000	1,613,000,000
Long-term debt		10,310,000,000	7,875,000,000	7,172,000,000
Discontinued liabilities		0	3,000,000	3,000,000
Total liabilities		84,705,000,000	83,279,000,000	79,281,000,000
EQUITY
Common shares, $1 par value; authorized 1,400,000,000 shares; issued 1,016,969,905, 1,016,969,905, and 1,016,969,905 shares		1,017,000,000	1,017,000,000	1,017,000,000
Capital surplus		3,914,000,000	3,986,000,000	3,984,000,000
Retained earnings		8,764,000,000	8,273,000,000	8,082,000,000
Treasury stock, at cost (181,685,035, 157,566,493, and 148,492,881 shares)		(3,008,000,000)	(2,681,000,000)	(2,563,000,000)
Accumulated other comprehensive income (loss)		(272,000,000)	(356,000,000)	(325,000,000)
Key shareholders' equity		10,705,000,000	10,530,000,000	10,486,000,000
Noncontrolling interests		12,000,000	12,000,000	17,000,000
Total equity		10,717,000,000	10,542,000,000	10,503,000,000
Total liabilities and equity		95,422,000,000	93,821,000,000	89,784,000,000
Series A Preferred Stock [Member]
EQUITY
Preferred stock, $1 par value, authorized 25,000,000 shares: 7.75% Noncumulative Perpetual Convertible Preferred Stock, Series A, $100 liquidation preference; authorized 7,475,000 shares; issued 2,900,234, 2,904,839, and 2,904,839 shares		$ 290,000,000	$ 291,000,000	$ 291,000,000

[1] The assets of the VIEs can only be used by the particular VIE, and there is no recourse to Key with respect to the liabilities of the consolidated LIHTC VIEs.