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Federal Reserve And Foreign Central Bank Deposits

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Loan receivables that will be held to maturity.

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Standby Letters of Credit

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Amount of floating rate capital debt held by the company that have an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur. The debt was issued by a business trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities. The floating rate capital debt must be redeemed upon maturity of the debentures or other loans.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Fair value portion of arrangements with third parties, including, but not limited to, operating lease arrangement and arrangement in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services.

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Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of foreign interest-bearing deposits held by the entity.

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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Fair Value Measurements (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and Due from Banks	$ 5,073.4	$ 4,518.1	$ 5,262.9	$ 5,332.0
Federal Reserve and Other Central Bank Deposits	32,831.8	40,479.1
Interest-Bearing Deposits with Banks	2,776.0	5,611.9
Federal Funds Sold and Securities Purchased under Agreements to Resell	1,501.5	1,324.3
Debt Securities
Available for Sale (Note)	36,131.1	33,742.1
Held to Maturity	14,445.4	13,049.0
Loans (excluding Leases)
Client Security Settlement Receivables	1,541.4	1,647.0
Deposits
Savings Certificates and Other Time	755.5	1,152.3
Non U.S. Offices Interest-Bearing	64,373.5	65,672.2
Federal Funds Purchased	2,563.9	2,286.1
Securities Sold Under Agreements to Repurchase	46.9	834.0
Other Borrowings	7,725.2	6,051.1
Senior Notes	1,996.2	1,497.3
Long Term Debt (excluding Leases)
Floating Rate Capital Debt	277.6	277.5
Derivative Instruments
Fair value asset	2,090.8	2,203.3
Fair value liability	2,043.8	2,003.1
Other Financial Derivatives
Derivative Instruments
Fair value liability	37.1	30.4
Level 2
Debt Securities
Available for Sale (Note)	30,500.0	28,000.0
Book Value
Assets
Cash and Due from Banks	5,073.4	4,518.1
Federal Reserve and Other Central Bank Deposits	32,831.8	40,479.1
Interest-Bearing Deposits with Banks	2,776.0	5,611.9
Federal Funds Sold and Securities Purchased under Agreements to Resell	1,501.5	1,324.3
Debt Securities
Available for Sale (Note)	36,131.1	33,742.1
Held to Maturity	14,445.4	13,049.0
Trading Account	1.1	0.5
Loans (excluding Leases)
Held for Investment	31,079.8	32,211.1
Held for Sale	0.0	20.9
Client Security Settlement Receivables	1,541.4	1,647.0
Other Assets
Federal Reserve and Federal Home Loan Bank Stock	300.3	223.1
Community Development Investments	541.1	415.3
Employee Benefit and Deferred Compensation	206.3	183.4
Deposits
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing	39,762.3	45,566.3
Savings Certificates and Other Time	755.5	1,152.3
Non U.S. Offices Interest-Bearing	64,373.5	65,672.2
Federal Funds Purchased	2,563.9	2,286.1
Securities Sold Under Agreements to Repurchase	46.9	834.0
Other Borrowings	7,725.2	6,051.1
Senior Notes	1,996.2	1,497.3
Long Term Debt (excluding Leases)
Subordinated Debt	1,087.6	1,435.1
Floating Rate Capital Debt	277.6	277.5
Other Liabilities
Standby Letters of Credit	24.2	30.3
Loan Commitments	146.8	33.1
Book Value \| Asset And Liability Management \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	311.2	30.1
Fair value liability	18.0	192.6
Book Value \| Asset And Liability Management \| Interest Rate Contracts
Derivative Instruments
Fair value asset	33.4	31.9
Fair value liability	28.4	19.4
Book Value \| Asset And Liability Management \| Other Financial Derivatives
Derivative Instruments
Fair value liability	37.1	30.4
Book Value \| Client Related and Trading \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	2,191.8	2,527.0
Fair value liability	2,161.9	2,522.5
Book Value \| Client Related and Trading \| Interest Rate Contracts
Derivative Instruments
Fair value asset	73.1	65.1
Fair value liability	102.5	64.1
Total Fair Value
Assets
Cash and Due from Banks	5,073.4	4,518.1
Federal Reserve and Other Central Bank Deposits	32,831.8	40,479.1
Interest-Bearing Deposits with Banks	2,776.0	5,611.9
Federal Funds Sold and Securities Purchased under Agreements to Resell	1,501.5	1,324.3
Debt Securities
Available for Sale (Note)	36,131.1	33,742.1
Held to Maturity	14,355.1	13,010.9
Trading Account	1.1	0.5
Loans (excluding Leases)
Held for Investment	31,036.9	32,375.8
Held for Sale	0.0	20.9
Client Security Settlement Receivables	1,541.4	1,647.0
Other Assets
Federal Reserve and Federal Home Loan Bank Stock	300.3	223.1
Community Development Investments	541.1	415.3
Employee Benefit and Deferred Compensation	202.2	181.5
Deposits
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing	39,762.3	45,566.3
Savings Certificates and Other Time	759.3	1,153.6
Non U.S. Offices Interest-Bearing	64,373.5	65,672.2
Federal Funds Purchased	2,563.9	2,286.1
Securities Sold Under Agreements to Repurchase	46.9	834.0
Other Borrowings	7,726.1	6,052.9
Senior Notes	1,981.7	1,528.4
Long Term Debt (excluding Leases)
Subordinated Debt	1,086.0	1,449.8
Floating Rate Capital Debt	260.4	260.0
Other Liabilities
Standby Letters of Credit	24.2	30.3
Loan Commitments	146.8	33.1
Total Fair Value \| Asset And Liability Management \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	311.2	30.1
Fair value liability	18.0	192.6
Total Fair Value \| Asset And Liability Management \| Interest Rate Contracts
Derivative Instruments
Fair value asset	33.4	31.9
Fair value liability	28.4	19.4
Total Fair Value \| Asset And Liability Management \| Other Financial Derivatives
Derivative Instruments
Fair value liability	37.1	30.4
Total Fair Value \| Client Related and Trading \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	2,191.8	2,527.0
Fair value liability	2,161.9	2,522.5
Total Fair Value \| Client Related and Trading \| Interest Rate Contracts
Derivative Instruments
Fair value asset	73.1	65.1
Fair value liability	102.5	64.1
Total Fair Value \| Level 1
Assets
Cash and Due from Banks	5,073.4	4,518.1
Debt Securities
Available for Sale (Note)	5,624.8	5,700.3
Held to Maturity	83.7	35.0
Other Assets
Employee Benefit and Deferred Compensation	129.8	115.5
Deposits
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing	39,762.3	45,566.3
Total Fair Value \| Level 2
Assets
Federal Reserve and Other Central Bank Deposits	32,831.8	40,479.1
Interest-Bearing Deposits with Banks	2,776.0	5,611.9
Federal Funds Sold and Securities Purchased under Agreements to Resell	1,501.5	1,324.3
Debt Securities
Available for Sale (Note)	30,503.4	28,037.5
Held to Maturity	14,271.4	12,975.9
Trading Account	1.1	0.5
Loans (excluding Leases)
Client Security Settlement Receivables	1,541.4	1,647.0
Other Assets
Federal Reserve and Federal Home Loan Bank Stock	300.3	223.1
Community Development Investments	541.1	415.3
Employee Benefit and Deferred Compensation	72.4	66.0
Deposits
Savings Certificates and Other Time	759.3	1,153.6
Non U.S. Offices Interest-Bearing	64,373.5	65,672.2
Federal Funds Purchased	2,563.9	2,286.1
Securities Sold Under Agreements to Repurchase	46.9	834.0
Other Borrowings	7,726.1	6,052.9
Senior Notes	1,981.7	1,528.4
Long Term Debt (excluding Leases)
Subordinated Debt	1,086.0	1,449.8
Floating Rate Capital Debt	260.4	260.0
Total Fair Value \| Level 2 \| Asset And Liability Management \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	311.2	30.1
Fair value liability	18.0	192.6
Total Fair Value \| Level 2 \| Asset And Liability Management \| Interest Rate Contracts
Derivative Instruments
Fair value asset	33.4	31.9
Fair value liability	28.4	19.4
Total Fair Value \| Level 2 \| Asset And Liability Management \| Other Financial Derivatives
Derivative Instruments
Fair value liability	0.5	0.7
Total Fair Value \| Level 2 \| Client Related and Trading \| Foreign Exchange Contracts
Derivative Instruments
Fair value asset	2,191.8	2,527.0
Fair value liability	2,161.9	2,522.5
Total Fair Value \| Level 2 \| Client Related and Trading \| Interest Rate Contracts
Derivative Instruments
Fair value asset	73.1	65.1
Fair value liability	102.5	64.1
Total Fair Value \| Level 3
Debt Securities
Available for Sale (Note)	2.9	4.3
Loans (excluding Leases)
Held for Investment	31,036.9	32,375.8
Held for Sale	0.0	20.9
Other Liabilities
Standby Letters of Credit	24.2	30.3
Loan Commitments	146.8	33.1
Total Fair Value \| Level 3 \| Asset And Liability Management \| Other Financial Derivatives
Derivative Instruments
Fair value liability	$ 36.6	$ 29.7