CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net Income	$ 473.4	$ 512.4
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Investment Security Losses, net	24.1	13.3
Amortization and Accretion of Securities and Unearned Income	(19.2)	(40.9)
Provision for Credit Losses	42.5	120.0
Depreciation on Buildings and Equipment	67.7	70.3
Amortization of Computer Software	117.4	101.2
Amortization of Intangibles	11.5	11.0
Qualified Pension Plan Contribution	(10.6)	(20.0)
Visa Indemnification Benefit	(10.1)	(12.7)
(Increase) Decrease in Receivables	104.5	(115.8)
Increase (Decrease) in Interest Payable	1.6	(6.0)
Net Change in Derivative Fair Value, Including Required Collateral	(1,204.2)	328.8
Other Operating Activities, net	264.4	(42.2)
Net Cash Provided by (Used In) Operating Activities	(137.0)	919.4
Cash Flows from Investing Activities:
Net Increase in Federal Funds Sold and Securities Purchased under Agreements to Resell	(61.6)	(178.7)
Net Increase in Interest-Bearing Deposits with Banks	(3,592.8)	(3,195.3)
Net Decrease in Federal Reserve Deposits and Other Interest-Bearing Assets	4,438.0	8,633.0
Purchases of Securities - Held to Maturity	(101.5)	(382.4)
Proceeds from Maturity and Redemption of Securities - Held to Maturity	195.9	377.2
Purchases of Securities - Available for Sale	(24,888.1)	(11,429.2)
Proceeds from Sale, Maturity and Redemption of Securities - Available for Sale	16,484.0	8,774.0
Net Increase in Loans and Leases	(634.9)	(166.6)
Purchases of Buildings and Equipment, net	(55.1)	(58.6)
Purchases and Development of Computer Software	(219.8)	(152.7)
Net (Increase) Decrease in Client Security Settlement Receivables	(246.9)	90.5
Decrease in Cash Due to Acquisitions, net of Cash Acquired	(172.6)
Other Investing Activities, net	(60.9)	(6.8)
Net Cash Provided by (Used in) Investing Activities	(8,916.3)	2,304.4
Cash Flows from Financing Activities:
Net Increase in Deposits	14,318.3	164.6
Net Decrease in Federal Funds Purchased	(2,953.9)	(1,844.6)
Net Decrease in Securities Sold under Agreements to Repurchase	(615.1)	(332.1)
Net Increase (Decrease) in Short-Term Other Borrowings	522.3	(503.9)
Proceeds from Term Federal Funds Purchased	7,959.9	17,208.3
Repayments of Term Federal Funds Purchased	(7,979.0)	(16,581.3)
Proceeds from Senior Notes and Long-Term Debt	500.0	642.7
Repayments of Senior Notes and Long-Term Debt	(879.8)	(917.6)
Treasury Stock Purchased	(77.7)	(6.0)
Net Proceeds from Stock Options	58.7	57.1
Cash Dividends Paid on Common Stock	(205.5)	(204.6)
Other Financing Activities, net		1.1
Net Cash Provided by (Used in) Financing Activities	10,648.2	(2,316.3)
Effect of Foreign Currency Exchange Rates on Cash	(76.3)	90.2
Increase in Cash and Due from Banks	1,518.6	997.7
Cash and Due from Banks at Beginning of Year	2,818.0	2,491.8
Cash and Due from Banks at End of Period	4,336.6	3,489.5
Supplemental Disclosures of Cash Flow Information:
Interest Paid	314.9	271.7
Income Taxes Paid	123.6	136.7
Transfers from Loans to OREO	$ 57.5	$ 24.5