Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2011
ASSETS
Cash and due from banks	$ 717		$ 694		$ 853
Short-term investments	2,216		3,519		4,563
Trading account assets	679		623		769
Securities available for sale	13,205		16,012		18,680
Held-to-maturity securities (fair value: $4,396, $2,133 and $19)	4,352		2,109		19
Other investments	1,186		1,163		1,195
Loans, net of unearned income of $1,155, $1,388 and $1,460	49,605		49,575		47,840
Less: Allowance for loan and lease losses	888		1,004		1,230
Net loans	48,717		48,571		46,610
Loans held for sale	656		728		381
Premises and equipment	931		944		919
Operating lease assets	318		350		453
Goodwill	917		917		917
Other intangible assets	15		17		19
Corporate-owned life insurance	3,285		3,256		3,208
Derivative assets	818		945		900
Accrued income and other assets (including $91 of consolidated LIHTC guaranteed funds VIEs, see Note 9)(a)	2,978	[1]	3,077	[1]	2,968	[1]
Discontinued assets (including $2,611 of consolidated education loan securitization trust VIEs (see Note 9) and $73 of loans in portfolio at fair value)(a)	5,533	[1]	5,860	[1]	6,328	[1]
Total assets	86,523		88,785		88,782
Deposits in domestic offices:
NOW and money market deposit accounts	28,957		27,954		26,277
Savings deposits	2,103		1,962		1,973
Certificates of deposit ($100,000 or more)	3,669		4,111		4,939
Other time deposits	5,385		6,243		7,167
Total interest-bearing	40,114		40,270		40,356
Noninterest-bearing	21,435		21,098		19,318
Deposits in foreign office - interest-bearing	618		588		736
Total deposits	62,167		61,956		60,410
Federal funds purchased and securities sold under repurchase agreements	1,716		1,711		1,668
Bank notes and other short-term borrowings	362		337		511
Derivative liabilities	763		1,026		991
Accrued expense and other liabilities	1,417		1,763		1,518
Long-term debt	7,521		9,520		10,997
Discontinued liabilities (including $2,401 of consolidated education loan securitization trust VIEs at fair value, see Note 9)(a)	2,401	[1]	2,550	[1]	2,950	[1]
Total liabilities	76,347		78,863		79,045
Preferred stock, $1 par value, authorized 25,000,000 shares:
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		1,017		1,017
Capital surplus	4,120		4,194		4,191
Retained earnings	6,595		6,246		5,926
Treasury stock, at cost (71,496,550, 63,962,113 and 63,147,538)	(1,796)		(1,815)		(1,815)
Accumulated other comprehensive income (loss)	(72)		(28)		109
Key shareholders' equity	10,155		9,905		9,719
Noncontrolling interests	21		17		18
Total equity	10,176		9,922		9,737
Total liabilities and equity	86,523		88,785		88,782
Preferred Stock
Preferred stock, $1 par value, authorized 25,000,000 shares:
Total equity	291		291		291
Series A Preferred Stock
Preferred stock, $1 par value, authorized 25,000,000 shares:
Preferred stock	$ 291		$ 291		$ 291

[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 or education loan securitization trust VIEs.