$CMA
COMERICA INC /NEW/ Stock $cma

$cma Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-Q Financial Statement

#000002841212000097 Filed on October 30, 2012

Income Statement

Concept	2012 Q4	2012 Q3	2011 Q3
Revenue	$456.0M	$460.0M	$463.0M
YoY Change	-5.2%	-0.65%	1.54%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$33.00M	$33.00M	$31.00M
YoY Change	3.13%	6.45%	-3.13%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$32.00M	$33.00M	$40.00M
YoY Change	-13.51%	-17.5%	-23.08%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$185.0M	$153.0M	$126.0M
YoY Change	43.41%	21.43%	90.91%
Income Tax	$55.00M	$36.00M	$28.00M
% Of Pretax Income	29.73%	23.53%	22.22%
Net Earnings	$130.0M	$117.0M	$98.00M
YoY Change	35.42%	19.39%	66.1%
Net Earnings / Revenue	28.51%	25.43%	21.17%
Basic Earnings Per Share	$0.68	$0.61	$0.51
Diluted Earnings Per Share	$0.68	$0.61	$0.51
COMMON SHARES
Basic Shares Outstanding	190.3M shares	190.0M shares
Diluted Shares Outstanding		191.0M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$4.534B	$3.938B	$5.198B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$622.0M	$625.0M	$685.0M
YoY Change	-7.85%	-8.76%	7.2%
Goodwill	$635.0M
YoY Change	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$65.07B	$63.31B	$60.89B
YoY Change	6.66%	3.98%	10.7%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$1.106B	$1.450B	$1.304B
YoY Change	-18.01%	11.2%	20.18%
Deferred Revenue
YoY Change
Short-Term Debt	$110.0M	$63.00M	$164.0M
YoY Change	57.14%	-61.59%	-8.38%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.106B	$1.450B	$1.304B
YoY Change	-18.01%	11.2%	20.18%
LONG-TERM LIABILITIES
Long-Term Debt	$4.720B	$4.740B	$5.009B
YoY Change	-4.53%	-5.37%	-30.81%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$4.720B	$4.740B	$5.009B
YoY Change	-4.53%	-5.37%	-30.81%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.106B	$1.450B	$1.304B
Total Long-Term Liabilities	$4.720B	$4.740B	$5.009B
Total Liabilities	$58.13B	$56.23B	$53.94B
YoY Change	7.36%	4.25%	9.75%
SHAREHOLDERS EQUITY
Retained Earnings	$5.931B	$5.831B	$5.471B
YoY Change	6.94%	6.58%
Common Stock	$3.303B	$3.294B	$3.303B
YoY Change	-0.24%	-0.27%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.879B	$1.788B	$1.593B
YoY Change	15.06%	12.24%
Treasury Stock Shares	39.89M shares	36.79M shares	29.24M shares
Shareholders Equity	$6.942B	$7.084B	$6.951B
YoY Change
Total Liabilities & Shareholders Equity	$65.07B	$63.31B	$60.89B
YoY Change	6.66%	3.98%	10.7%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2011 Q3
OPERATING ACTIVITIES
Net Income	$130.0M	$117.0M	$98.00M
YoY Change	35.42%	19.39%	66.1%
Depreciation, Depletion And Amortization	$33.00M	$33.00M	$31.00M
YoY Change	3.13%	6.45%	-3.13%
Cash From Operating Activities	-$53.00M	$299.0M	$294.0M
YoY Change	-232.5%	1.7%	15.29%
INVESTING ACTIVITIES
Capital Expenditures	-$75.00M		-$35.00M
YoY Change	158.62%		20.69%
Acquisitions
YoY Change
Other Investing Activities	-$1.578B	-$818.0M	$232.0M
YoY Change	-15.07%	-452.59%	-64.03%
Cash From Investing Activities	-$1.653B	-$818.0M	$197.0M
YoY Change	-12.4%	-515.23%	-68.02%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	2.302B	317.0M	1.241B
YoY Change	1022.93%	-74.46%	-212.61%
NET CHANGE
Cash From Operating Activities	-53.00M	299.0M	294.0M
Cash From Investing Activities	-1.653B	-818.0M	197.0M
Cash From Financing Activities	2.302B	317.0M	1.241B
Net Change In Cash	596.0M	-202.0M	1.732B
YoY Change	-136.3%	-111.66%	-849.78%
FREE CASH FLOW
Cash From Operating Activities	-$53.00M	$299.0M	$294.0M
Capital Expenditures	-$75.00M		-$35.00M
Free Cash Flow	$22.00M		$329.0M
YoY Change	-68.12%		15.85%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-35000000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-27000000	USD
CY2012Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-253000000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-230000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-356000000	USD
CY2012Q3	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	15000000	USD
CY2011Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2162000000	USD
CY2012Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2153000000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2170000000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	29000000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	29000000	USD
CY2012Q3	us-gaap	Advertising Expense AdvertisingExpense	7000000	USD
	us-gaap	Advertising Expense AdvertisingExpense	21000000	USD
	us-gaap	Advertising Expense AdvertisingExpense	21000000	USD
CY2011Q3	us-gaap	Advertising Expense AdvertisingExpense	7000000	USD
	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	134000000	USD
	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	54000000	USD
CY2012Q3	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	23000000	USD
CY2011Q3	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	38000000	USD
CY2011Q4	us-gaap	Assets Assets	61008000000	USD
CY2011Q3	us-gaap	Assets Assets	60888000000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.63
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.61
CY2012Q3	us-gaap	Assets Assets	63314000000	USD
CY2011Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	9732000000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	10104000000	USD
CY2012Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	10569000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	10255000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	9901000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	682000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	228000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	0	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	337000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	228000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	345000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	119000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	121000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	974000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	988000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	8756000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	9057000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	9939000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	90000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	91000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	10257000000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	18000000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	11000000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	12000000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	21000000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1000000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	9000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	21000000	USD
CY2012Q3	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	89
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	19000000	USD
CY2012Q3	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	9000000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2	21000000	USD
CY2012Q3	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2	9000000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	2000000	USD
CY2012Q3	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	0	USD
CY2012Q3	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	323000000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	224000000	USD
CY2012Q3	us-gaap	Average Term Of Credit Risk Derivatives1 AverageTermOfCreditRiskDerivatives1	P2Y4M2D
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	30000000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	27000000	USD
CY2011Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	10000000	USD
CY2012Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	10000000	USD
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	17000000	USD
CY2011Q3	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	5000000	USD
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	14000000	USD
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	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	721000000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
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CY2011Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5198000000	USD
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	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3115000000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	382000000	USD
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CY2011Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	981000000	USD
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CY2012Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	62000000	USD
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	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
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CY2012Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2011Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	325000000	shares
CY2011Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	325000000	shares
CY2012Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	325000000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	228164824	shares
CY2012Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	228164824	shares
CY2011Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	228164824	shares
CY2011Q3	us-gaap	Common Stock Value CommonStockValue	1141000000	USD
CY2012Q3	us-gaap	Common Stock Value CommonStockValue	1141000000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	1141000000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	165000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	456000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	494000000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	176000000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	69000000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	52000000	USD
CY2012Q3	us-gaap	Deposits Deposits	49977000000	USD
CY2011Q4	us-gaap	Deposits Deposits	47755000000	USD
CY2011Q3	us-gaap	Deposits Deposits	47452000000	USD
CY2011Q4	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	20311000000	USD
CY2012Q3	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	20407000000	USD
CY2011Q3	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	20237000000	USD
CY2011Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1771000000	USD
CY2011Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1524000000	USD
CY2012Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1589000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	90000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	100000000	USD
CY2012Q3	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	-5000000	USD
CY2011Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	-4000000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	757000000	USD
CY2012Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	811000000	USD
CY2012Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	13000000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	403000000	USD
CY2012Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	456000000	USD
CY2012Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	77000000	USD
CY2011Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	20000000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	78000000	USD
CY2012Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	29000000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	55000000	USD
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2011Q3	us-gaap	Equipment Expense EquipmentExpense	17000000	USD
CY2012Q3	us-gaap	Equipment Expense EquipmentExpense	17000000	USD
	us-gaap	Equipment Expense EquipmentExpense	49000000	USD
	us-gaap	Equipment Expense EquipmentExpense	50000000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1000000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1000000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1000000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1000000	USD
	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Liquidating Investment Remaining Period1 FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareLiquidatingInvestmentRemainingPeriod1	P17Y
CY2012Q3	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	1000000	USD
CY2011Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	1000000	USD
CY2012Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9000000	USD
CY2011Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	8000000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	29000000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	35000000	USD
CY2012Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	89000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	92000000	USD
CY2012Q3	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	85000000	USD
CY2011Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	85000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	209000000	USD
CY2012Q3	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	12000000	USD
CY2011Q3	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	17000000	USD
	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	47000000	USD
	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	35000000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	156000000	USD
CY2012Q3	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	53000000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	162000000	USD
CY2011Q3	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	53000000	USD
	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	116000000	USD
	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	115000000	USD
CY2012Q3	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	39000000	USD
CY2011Q3	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	37000000	USD
CY2012Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	539000000	USD
CY2011Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	600000000	USD
CY2011Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	-167000000	USD
CY2012Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	-108000000	USD
CY2012Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	-16000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	-70000000	USD
CY2011Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	-13000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	-52000000	USD
CY2011Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	90000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	338000000	USD
CY2012Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	59000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	185000000	USD
CY2012Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	43553000000	USD
CY2011Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	40289000000	USD
CY2011Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	823000000	USD
CY2012Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	591000000	USD
CY2012Q3	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	110000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	66000000	USD
CY2012Q3	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	47000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	58000000	USD
CY2012Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	36000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	41486000000	USD
CY2012Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	43336000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	333000000	USD
CY2012Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	193000000	USD
CY2011Q4	us-gaap	Foreclosed Assets ForeclosedAssets	94000000	USD
CY2012Q3	us-gaap	Foreclosed Assets ForeclosedAssets	63000000	USD
CY2011Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1000000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1000000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	18000000	USD
CY2012Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	0	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	11000000	USD
CY2011Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	12000000	USD
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-23000000	USD
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-9000000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	888000000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	681000000	USD
CY2012Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	601000000	USD
CY2011Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	840000000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	8000000	USD
CY2012Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2000000	USD
CY2011Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3000000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	771000000	USD
CY2012Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	591000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	153000000	USD
CY2012Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	108000000	USD
CY2012Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	889000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1078000000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28000000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	134000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	104000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	38000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48000000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1000000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-21000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2141000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2898000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-164000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-132000000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-14000000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-14000000	USD
CY2011Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	463000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1328000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1407000000	USD
CY2012Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	460000000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	179000000	USD
CY2012Q3	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	57000000	USD
CY2011Q3	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	54000000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	170000000	USD
CY2011Q3	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	405000000	USD
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	1219000000	USD
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	1149000000	USD
CY2012Q3	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	400000000	USD
CY2011Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	28336000000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	27991000000	USD
CY2012Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	28224000000	USD
CY2012Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	3005000000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	2574000000	USD
CY2011Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	4217000000	USD
CY2012Q3	us-gaap	Interest Bearing Foreign Deposit Time Deposits InterestBearingForeignDepositTimeDeposits	486000000	USD
CY2011Q4	us-gaap	Interest Bearing Foreign Deposit Time Deposits InterestBearingForeignDepositTimeDeposits	348000000	USD
CY2011Q3	us-gaap	Interest Bearing Foreign Deposit Time Deposits InterestBearingForeignDepositTimeDeposits	303000000	USD
	us-gaap	Interest Expense InterestExpense	103000000	USD
	us-gaap	Interest Expense InterestExpense	119000000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	33000000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	40000000	USD
CY2011Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	24000000	USD
CY2012Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	17000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	69000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	54000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	49000000	USD
CY2011Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	16000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	50000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	2000000	USD
CY2012Q3	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	351000000	USD
	us-gaap	Variable Interest Entity Financial Or Other Support Amount VariableInterestEntityFinancialOrOtherSupportAmount	0	USD
	us-gaap	Variable Interest Entity Financial Or Other Support Amount VariableInterestEntityFinancialOrOtherSupportAmount	0	USD
CY2012Q3	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	665000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	860000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	42679000000	USD
CY2011Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	41225000000	USD
CY2012Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	44194000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	41953000000	USD
CY2011Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	40458000000	USD
CY2012Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	43547000000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	4944000000	USD
CY2011Q3	us-gaap	Long Term Debt LongTermDebt	5009000000	USD
CY2012Q3	us-gaap	Long Term Debt LongTermDebt	4740000000	USD
CY2011Q4	us-gaap	Maximum Potential Future Exposure On Credit Risk Derivatives MaximumPotentialFutureExposureOnCreditRiskDerivatives	12000000	USD
CY2012Q3	us-gaap	Maximum Potential Future Exposure On Credit Risk Derivatives MaximumPotentialFutureExposureOnCreditRiskDerivatives	13000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1321000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1660000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2023000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1038000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	745000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	756000000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	97000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	294000000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	116000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	387000000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	82000000	USD
CY2012Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	21753000000	USD
CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	19764000000	USD
CY2011Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	19116000000	USD
	us-gaap	Noninterest Expense NoninterestExpense	1330000000	USD
	us-gaap	Noninterest Expense NoninterestExpense	1292000000	USD
CY2011Q3	us-gaap	Noninterest Expense NoninterestExpense	463000000	USD
CY2012Q3	us-gaap	Noninterest Expense NoninterestExpense	449000000	USD
	us-gaap	Noninterest Income NoninterestIncome	614000000	USD
	us-gaap	Noninterest Income NoninterestIncome	610000000	USD
CY2011Q3	us-gaap	Noninterest Income NoninterestIncome	201000000	USD
CY2012Q3	us-gaap	Noninterest Income NoninterestIncome	197000000	USD
CY2012Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	28000000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	81000000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	92000000	USD
CY2011Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	15000000	USD
CY2011Q4	us-gaap	Notional Amount Of Credit Risk Derivatives NotionalAmountOfCreditRiskDerivatives	394000000	USD
CY2012Q3	us-gaap	Notional Amount Of Credit Risk Derivatives NotionalAmountOfCreditRiskDerivatives	471000000	USD
	us-gaap	Occupancy Net OccupancyNet	121000000	USD
CY2012Q3	us-gaap	Occupancy Net OccupancyNet	40000000	USD
	us-gaap	Occupancy Net OccupancyNet	122000000	USD
CY2011Q3	us-gaap	Occupancy Net OccupancyNet	44000000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	4571000000	USD
CY2011Q3	us-gaap	Other Assets OtherAssets	4678000000	USD
CY2012Q3	us-gaap	Other Assets OtherAssets	4489000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	103000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	159000000	USD
CY2011Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	4000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	9000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	9000000	USD
CY2012Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	3000000	USD
CY2011Q3	us-gaap	Other Liabilities OtherLiabilities	1312000000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	1371000000	USD
CY2012Q3	us-gaap	Other Liabilities OtherLiabilities	1450000000	USD
CY2011Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	57000000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	151000000	USD
CY2012Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	46000000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	161000000	USD
CY2011Q3	us-gaap	Other Short Term Investments OtherShortTermInvestments	137000000	USD
CY2011Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	149000000	USD
CY2012Q3	us-gaap	Other Short Term Investments OtherShortTermInvestments	146000000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-3000000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-33000000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1620000000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-819000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	91000000	USD
CY2012Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	16000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1083000000	USD
CY2011Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	388000000	USD
CY2012Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	405000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1241000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1304000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1209000000	USD
CY2012Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	427000000	USD
CY2011Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	423000000	USD
	us-gaap	Interest Paid InterestPaid	101000000	USD
	us-gaap	Interest Paid InterestPaid	113000000	USD
CY2011Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	245000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	763000000	USD
CY2012Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	253000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	718000000	USD
	us-gaap	Legal Fees LegalFees	29000000	USD
	us-gaap	Legal Fees LegalFees	26000000	USD
CY2012Q3	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5300000000	USD
CY2011Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5500000000	USD
CY2012Q3	us-gaap	Liabilities Liabilities	56230000000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	54140000000	USD
CY2011Q3	us-gaap	Liabilities Liabilities	53937000000	USD
CY2012Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	63314000000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	61008000000	USD
CY2011Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	60888000000	USD
CY2012Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	647000000	USD
CY2011Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	767000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	726000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	667000000	USD
CY2011Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	806000000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	901000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	13000000	USD
CY2012Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	7000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	30000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	75000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	215000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	53000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	69000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3007000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3194000000	USD
CY2012Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	14000000000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1757000000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2817000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-7000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	12000000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	773000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	1000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	33000000	USD
	us-gaap	Profit Loss ProfitLoss	391000000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	117000000	USD
	us-gaap	Profit Loss ProfitLoss	297000000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	98000000	USD
CY2012Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	625000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	675000000	USD
CY2011Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	685000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	63000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	126000000	USD
CY2012Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	22000000	USD
CY2011Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	35000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	193000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1464000000	USD
	us-gaap	Restructuring And Related Cost Cost Incurred To Date RestructuringAndRelatedCostCostIncurredToDate	108000000	USD
	us-gaap	Restructuring And Related Cost Expected Cost RestructuringAndRelatedCostExpectedCost	112000000	USD
	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	38000000	USD
CY2012Q3	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	25000000	USD
	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	33000000	USD
CY2011Q3	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	33000000	USD
CY2012Q3	us-gaap	Restructuring Charges RestructuringCharges	25000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	39000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	38000000	USD
CY2011Q3	us-gaap	Restructuring Charges RestructuringCharges	33000000	USD
CY2011Q3	us-gaap	Restructuring Reserve RestructuringReserve	9000000	USD
CY2012Q3	us-gaap	Restructuring Reserve RestructuringReserve	33000000	USD
CY2011Q2	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2011Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29000000	USD
CY2012Q2	us-gaap	Restructuring Reserve RestructuringReserve	17000000	USD
CY2011Q4	us-gaap	Restructuring Reserve RestructuringReserve	26000000	USD
CY2010Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2011Q3	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	0	USD
CY2012Q3	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	0	USD
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	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	0	USD
	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	29000000	USD
CY2011Q3	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	24000000	USD
CY2012Q3	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	9000000	USD
	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	26000000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5546000000	USD
CY2011Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5471000000	USD
CY2012Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5831000000	USD
CY2011Q3	us-gaap	Segment Reporting Information Average Assets SegmentReportingInformationAverageAssets	55526000000	USD
CY2012Q3	us-gaap	Segment Reporting Information Average Assets SegmentReportingInformationAverageAssets	62284000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	29000000	USD
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CY2011Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	164000000	USD
CY2012Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	63000000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	70000000	USD
CY2012Q3	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-18000000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	803000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-14000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6868000000	USD
CY2012Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7084000000	USD
CY2011Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6951000000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5793000000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	41000000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	31000000	USD
CY2011Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	29238425	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	30831076	shares
CY2012Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	36790174	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1633000000	USD
CY2012Q3	us-gaap	Treasury Stock Value TreasuryStockValue	1788000000	USD
CY2011Q3	us-gaap	Treasury Stock Value TreasuryStockValue	1593000000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	215000000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	75000000	USD
	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	4000000	USD
CY2012Q3	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1000000	USD
CY2011Q3	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1000000	USD
	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	3000000	USD
CY2012Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27000000	USD
CY2012Q3	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	104000000	USD
	cma	Accretion Of Discount On Receivables Acquired In Transfer AccretionOfDiscountOnReceivablesAcquiredInTransfer	58000000	USD
	cma	Accretion Of Discount On Receivables Acquired In Transfer AccretionOfDiscountOnReceivablesAcquiredInTransfer	27000000	USD
CY2011Q4	cma	Allowance For Off Balance Sheet Credit Losses AllowanceForOffBalanceSheetCreditLosses	26000000	USD
CY2012Q3	cma	Allowance For Off Balance Sheet Credit Losses AllowanceForOffBalanceSheetCreditLosses	35000000	USD
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	cma	Average Balance During Period Deposits AverageBalanceDuringPeriodDeposits	48953000000	USD
	cma	Average Balance During Period Loans And Leases Receivable Net Of Deferred Income AverageBalanceDuringPeriodLoansAndLeasesReceivableNetOfDeferredIncome	39610000000	USD
	cma	Average Balance During Period Loans And Leases Receivable Net Of Deferred Income AverageBalanceDuringPeriodLoansAndLeasesReceivableNetOfDeferredIncome	43034000000	USD
CY2011Q4	cma	Carrying Value Of Standby And Commercial Letters Of Credit CarryingValueOfStandbyAndCommercialLettersOfCredit	89000000	USD
CY2012Q3	cma	Carrying Value Of Standby And Commercial Letters Of Credit CarryingValueOfStandbyAndCommercialLettersOfCredit	94000000	USD
CY2011Q4	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Allowance For Credit Losses On Lending Related Commitments CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInAllowanceForCreditLossesOnLendingRelatedCommitments	17000000	USD
CY2012Q3	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Allowance For Credit Losses On Lending Related Commitments CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInAllowanceForCreditLossesOnLendingRelatedCommitments	15000000	USD
CY2011Q4	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Deferred Fees CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees	72000000	USD
CY2012Q3	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Deferred Fees CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees	79000000	USD
CY2012Q3	cma	Carrying Value Of Unused Commitments To Extend Credit CarryingValueOfUnusedCommitmentsToExtendCredit	20000000	USD
CY2011Q4	cma	Carrying Value Of Unused Commitments To Extend Credit CarryingValueOfUnusedCommitmentsToExtendCredit	9000000	USD
CY2011Q3	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	113000000	USD
CY2012Q3	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	50000000	USD
CY2011Q4	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	87000000	USD
	cma	Commercial Lending Fees CommercialLendingFees	64000000	USD
	cma	Commercial Lending Fees CommercialLendingFees	71000000	USD
CY2012Q3	cma	Commercial Lending Fees CommercialLendingFees	22000000	USD
CY2011Q3	cma	Commercial Lending Fees CommercialLendingFees	22000000	USD
CY2011Q3	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	5980000000	USD
CY2012Q3	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	5742000000	USD
CY2011Q4	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	5808000000	USD
CY2011Q4	cma	Derivative Liability DerivativeLiability	6000000	USD
CY2012Q3	cma	Derivativeassetscollateralpledgedfairvaluesecurities Derivativeassetscollateralpledgedfairvaluesecurities	206000000	USD
	cma	Efficiency Ratio EfficiencyRatio	0.7159
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CY2011Q3	cma	Employee Benefits Expense EmployeeBenefitsExpense	53000000	USD
CY2012Q3	cma	Employee Benefits Expense EmployeeBenefitsExpense	61000000	USD
	cma	Employee Benefits Expense EmployeeBenefitsExpense	153000000	USD
	cma	Employee Benefits Expense EmployeeBenefitsExpense	181000000	USD
CY2011Q4	cma	Fair Value Assets Measured On Nonrecurring Basis Impaired Loans FairValueAssetsMeasuredOnNonrecurringBasisImpairedLoans	564000000	USD
CY2012Q3	cma	Fair Value Assets Measured On Nonrecurring Basis Impaired Loans FairValueAssetsMeasuredOnNonrecurringBasisImpairedLoans	335000000	USD
CY2012Q3	cma	Fair Value Assets Measured On Nonrecurring Basis Nonmarketable Equity Securities FairValueAssetsMeasuredOnNonrecurringBasisNonmarketableEquitySecurities	1000000	USD
CY2011Q4	cma	Fair Value Assets Measured On Nonrecurring Basis Nonmarketable Equity Securities FairValueAssetsMeasuredOnNonrecurringBasisNonmarketableEquitySecurities	1000000	USD
CY2011Q3	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-77000000	USD
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	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-268000000	USD
CY2012Q3	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-43000000	USD
	cma	Foreign Exchange Income ForeignExchangeIncome	30000000	USD
CY2012Q3	cma	Foreign Exchange Income ForeignExchangeIncome	9000000	USD
CY2011Q3	cma	Foreign Exchange Income ForeignExchangeIncome	11000000	USD
	cma	Foreign Exchange Income ForeignExchangeIncome	29000000	USD
	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	401000000	USD
CY2012Q3	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	153000000	USD
CY2011Q3	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	126000000	USD
	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	525000000	USD
CY2011Q3	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	927000000	USD
CY2011Q4	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	905000000	USD
CY2012Q3	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	837000000	USD
	cma	Letter Of Credit Fees LetterOfCreditFees	55000000	USD
CY2012Q3	cma	Letter Of Credit Fees LetterOfCreditFees	19000000	USD
CY2011Q3	cma	Letter Of Credit Fees LetterOfCreditFees	19000000	USD
	cma	Letter Of Credit Fees LetterOfCreditFees	54000000	USD
CY2012Q3	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2174000000	USD
CY2011Q4	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2285000000	USD
CY2011Q3	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2309000000	USD
CY2012Q3	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1495000000	USD
CY2011Q4	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1526000000	USD
CY2011Q3	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1643000000	USD
CY2011Q4	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1170000000	USD
CY2011Q3	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1046000000	USD
CY2012Q3	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1277000000	USD
CY2011Q3	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	23113000000	USD
CY2012Q3	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	27460000000	USD
CY2011Q4	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	24996000000	USD
CY2011Q3	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	10539000000	USD
CY2011Q4	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	10264000000	USD
CY2012Q3	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	9559000000	USD
CY2012Q3	cma	Loans Receivable Ratio Of Allowance For Loan Losses To All Loans LoansReceivableRatioOfAllowanceForLoanLossesToAllLoans	0.0146
CY2011Q3	cma	Loans Receivable Ratio Of Allowance For Loan Losses To All Loans LoansReceivableRatioOfAllowanceForLoanLossesToAllLoans	0.0186
CY2012Q3	cma	Longest Expiration Year Letters Of Credit LongestExpirationYearLettersOfCredit	2022
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CY2012Q3	cma	Notional Amount Derivative In Shares NotionalAmountDerivativeInShares	780000	shares
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CY2012Q3	cma	Other Real Estate Expense OtherRealEstateExpense	2000000	USD
	cma	Other Real Estate Expense OtherRealEstateExpense	19000000	USD
	cma	Other Real Estate Expense OtherRealEstateExpense	6000000	USD
CY2011Q3	cma	Other Real Estate Expense OtherRealEstateExpense	5000000	USD
CY2011Q4	cma	Other Time Deposits OtherTimeDeposits	0	USD
CY2011Q3	cma	Other Time Deposits OtherTimeDeposits	45000000	USD
CY2012Q3	cma	Other Time Deposits OtherTimeDeposits	0	USD
CY2011Q3	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	25000000	USD
	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	74000000	USD
	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	79000000	USD
CY2012Q3	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	27000000	USD
CY2012Q3	cma	Partnership Interest In Low Income Housing Partnerships PartnershipInterestInLowIncomeHousingPartnerships	160	partnerships
CY2011Q4	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1533000000	USD
CY2012Q3	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1392000000	USD
CY2011Q3	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1648000000	USD
CY2012Q3	cma	Reduced Rate Loans ReducedRateLoans	27000000	USD
CY2011Q4	cma	Reduced Rate Loans ReducedRateLoans	27000000	USD
	cma	Restructuring And Related Cost Expected Cost Net Of Tax RestructuringAndRelatedCostExpectedCostNetOfTax	71000000	USD
	cma	Restructuring And Related Cost Incurred To Date Costs Net Of Tax Effect RestructuringAndRelatedCostIncurredToDateCostsNetOfTaxEffect	68000000	USD
	cma	Return On Average Assets ReturnOnAverageAssets	0.0071
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CY2011Q4	cma	Risk Participations Covering Standby Commercial Letters Of Credit RiskParticipationsCoveringStandbyCommercialLettersOfCredit	271000000	USD
CY2012Q3	cma	Risk Participations Covering Standby Commercial Letters Of Credit RiskParticipationsCoveringStandbyCommercialLettersOfCredit	321000000	USD
	cma	Salaries Expense SalariesExpense	582000000	USD
	cma	Salaries Expense SalariesExpense	565000000	USD
CY2012Q3	cma	Salaries Expense SalariesExpense	192000000	USD
CY2011Q3	cma	Salaries Expense SalariesExpense	192000000	USD
	cma	Segment Reporting Information Interest Income Expense Net Fte SegmentReportingInformationInterestIncomeExpenseNetFte	1212000000	USD
	cma	Segment Reporting Information Interest Income Expense Net Fte SegmentReportingInformationInterestIncomeExpenseNetFte	1306000000	USD
	cma	Segment Reporting Information Tax Expense Fte SegmentReportingInformationTaxExpenseFte	107000000	USD
	cma	Segment Reporting Information Tax Expense Fte SegmentReportingInformationTaxExpenseFte	136000000	USD
CY2011Q3	cma	Software Expenses SoftwareExpenses	22000000	USD
	cma	Software Expenses SoftwareExpenses	65000000	USD
	cma	Software Expenses SoftwareExpenses	67000000	USD
CY2012Q3	cma	Software Expenses SoftwareExpenses	23000000	USD
CY2011Q4	cma	Total Internally Classified Watch List Letters Of Credit TotalInternallyClassifiedWatchListLettersOfCredit	195000000	USD
CY2012Q3	cma	Total Internally Classified Watch List Letters Of Credit TotalInternallyClassifiedWatchListLettersOfCredit	162000000	USD
CY2011Q4	cma	Total Nonperforming Assets TotalNonperformingAssets	981000000	USD
CY2012Q3	cma	Total Nonperforming Assets TotalNonperformingAssets	755000000	USD
CY2011Q4	cma	Total Nonperforming Loans TotalNonperformingLoans	887000000	USD
CY2012Q3	cma	Total Nonperforming Loans TotalNonperformingLoans	692000000	USD
CY2011Q3	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	108000000	USD
CY2012Q3	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	40000000	USD
	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	90000000	USD
	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	206000000	USD
CY2012Q3	cma	Watch List Letters Of Credit As Percentage Of Total Letters Of Credit WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit	0.031
CY2011Q4	cma	Watch List Letters Of Credit As Percentage Of Total Letters Of Credit WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit	0.036
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	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
	dei	Document Period End Date DocumentPeriodEndDate	2012-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000028412
CY2012Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	190344108	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Comerica INC /NEW/
	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012Q3	invest	Derivative Notional Amount DerivativeNotionalAmount	21144000000	USD
CY2011Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	17723000000	USD

Files In Submission

Name	View Source	Status
0000028412-12-000097-index-headers.html	Edgar Link	pending
0000028412-12-000097-index.html	Edgar Link	pending
0000028412-12-000097.txt	Edgar Link	pending
0000028412-12-000097-xbrl.zip	Edgar Link	pending
cma-20120930.xml	Edgar Link	completed
cma-20120930.xsd	Edgar Link	pending
cma-20120930_cal.xml	Edgar Link	unprocessable
cma-20120930_def.xml	Edgar Link	unprocessable
cma-20120930_lab.xml	Edgar Link	unprocessable
cma-20120930_pre.xml	Edgar Link	unprocessable
cma-201293010q.htm	Edgar Link	pending
cma-201293010q_ex311.htm	Edgar Link	pending
cma-201293010q_ex312.htm	Edgar Link	pending
cma-201293010q_ex32.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CMA
COMERICA INC /NEW/ Stock $cma

2012 Q4 Form 10-Q Financial Statement

#000002841212000097 Filed on October 30, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMA COMERICA INC /NEW/ Stock $cma

2012 Q4 Form 10-Q Financial Statement

#000002841212000097 Filed on October 30, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMA
COMERICA INC /NEW/ Stock $cma