$CMA
COMERICA INC /NEW/ Stock $cma

$cma Overview Financials Valuation SEC Filings Company Website

2012 Q2 Form 10-Q Financial Statement

#000002841212000077 Filed on July 30, 2012

Income Statement

Concept	2012 Q2	2011 Q2
Revenue	$470.0M	$431.0M
YoY Change	9.05%	-9.45%
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	$34.00M	$30.00M
YoY Change	13.33%	0.0%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$35.00M	$40.00M
YoY Change	-12.5%	-25.93%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$194.0M	$137.0M
YoY Change	41.61%	47.31%
Income Tax	$50.00M	$41.00M
% Of Pretax Income	25.77%	29.93%
Net Earnings	$144.0M	$96.00M
YoY Change	50.0%	37.14%
Net Earnings / Revenue	30.64%	22.27%
Basic Earnings Per Share	$0.73	$0.54
Diluted Earnings Per Share	$0.73	$0.53
COMMON SHARES
Basic Shares Outstanding	194.0M shares
Diluted Shares Outstanding	194.0M shares

Balance Sheet

Concept	2012 Q2	2011 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$4.140B	$3.466B
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	$667.0M	$641.0M
YoY Change	4.06%	1.1%
Goodwill
YoY Change
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	$62.65B	$54.14B
YoY Change	15.72%	-3.12%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$1.409B	$1.062B
YoY Change	32.67%	1.34%
Deferred Revenue
YoY Change
Short-Term Debt	$83.00M	$67.00M
YoY Change	23.88%	-66.5%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.409B	$1.062B
YoY Change	32.67%	1.34%
LONG-TERM LIABILITIES
Long-Term Debt	$4.742B	$5.206B
YoY Change	-8.91%	-42.42%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$4.742B	$5.206B
YoY Change	-8.91%	-42.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.409B	$1.062B
Total Long-Term Liabilities	$4.742B	$5.206B
Total Liabilities	$55.62B	$48.10B
YoY Change	15.63%	-3.97%
SHAREHOLDERS EQUITY
Retained Earnings	$5.744B	$5.395B
YoY Change	6.47%
Common Stock	$3.285B	$2.491B
YoY Change	31.87%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.700B	$1.540B
YoY Change	10.39%
Treasury Stock Shares	33.89M shares	27.09M shares
Shareholders Equity	$7.028B	$6.038B
YoY Change
Total Liabilities & Shareholders Equity	$62.65B	$54.14B
YoY Change	15.72%	-3.12%

Cashflow Statement

Concept	2012 Q2	2011 Q2
OPERATING ACTIVITIES
Net Income	$144.0M	$96.00M
YoY Change	50.0%	37.14%
Depreciation, Depletion And Amortization	$34.00M	$30.00M
YoY Change	13.33%	0.0%
Cash From Operating Activities	$289.0M	$312.0M
YoY Change	-7.37%	-27.61%
INVESTING ACTIVITIES
Capital Expenditures		-$27.00M
YoY Change		42.11%
Acquisitions
YoY Change
Other Investing Activities	-$902.0M	-$218.0M
YoY Change	313.76%	-154.77%
Cash From Investing Activities	-$902.0M	-$245.0M
YoY Change	268.16%	-164.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	794.0M	-1.046B
YoY Change	-175.91%	-10.83%
NET CHANGE
Cash From Operating Activities	289.0M	312.0M
Cash From Investing Activities	-902.0M	-245.0M
Cash From Financing Activities	794.0M	-1.046B
Net Change In Cash	181.0M	-979.0M
YoY Change	-118.49%	169.7%
FREE CASH FLOW
Cash From Operating Activities	$289.0M	$312.0M
Capital Expenditures		-$27.00M
Free Cash Flow		$339.0M
YoY Change		-24.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-12000000	USD
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CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-301000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-356000000	USD
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	us-gaap	Advertising Expense AdvertisingExpense	14000000	USD
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	us-gaap	Advertising Expense AdvertisingExpense	14000000	USD
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	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	96000000	USD
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CY2012Q2	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	39000000	USD
	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	78000000	USD
	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	77000000	USD
CY2012Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	545000000	USD
CY2011Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	630000000	USD
CY2011Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	-176000000	USD
CY2012Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment	-122000000	USD
CY2012Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recoveries FinancingReceivableAllowanceForCreditLossesRecoveries	-19000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recoveries FinancingReceivableAllowanceForCreditLossesRecoveries	-57000000	USD
CY2011Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recoveries FinancingReceivableAllowanceForCreditLossesRecoveries	-35000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recoveries FinancingReceivableAllowanceForCreditLossesRecoveries	-36000000	USD
CY2011Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	125000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	248000000	USD
CY2012Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	64000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	126000000	USD
CY2012Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	43312000000	USD
CY2011Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	38336000000	USD
CY2011Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	857000000	USD
CY2012Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	618000000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	189000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	209000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	66000000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	81000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	58000000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	43000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	41486000000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	42960000000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	333000000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	313000000	USD
CY2011Q4	us-gaap	Foreclosed Assets ForeclosedAssets	94000000	USD
CY2012Q2	us-gaap	Foreclosed Assets ForeclosedAssets	67000000	USD
CY2011Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	4000000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6000000	USD
CY2012Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6000000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	11000000	USD
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-20000000	USD
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-3000000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	910000000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	713000000	USD
CY2012Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	685000000	USD
CY2011Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	879000000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	5000000	USD
CY2012Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2000000	USD
CY2011Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3000000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	4000000	USD
CY2012Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	618000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	771000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	153000000	USD
CY2012Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	122000000	USD
CY2012Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	901000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1078000000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41000000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	98000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	76000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	64000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	47000000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-40000000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-47000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1134000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1704000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-66000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-85000000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-14000000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	23000000	USD
CY2012Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	470000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	948000000	USD
CY2011Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	431000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	865000000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	116000000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	123000000	USD
CY2012Q2	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	59000000	USD
CY2011Q2	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	59000000	USD
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	744000000	USD
CY2012Q2	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	408000000	USD
CY2011Q2	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	369000000	USD
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	819000000	USD
CY2012Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	28058000000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	27991000000	USD
CY2011Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	25414000000	USD
CY2012Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	3065000000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	2574000000	USD
CY2011Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	2479000000	USD
CY2012Q2	us-gaap	Interest Expense InterestExpense	35000000	USD
CY2011Q2	us-gaap	Interest Expense InterestExpense	40000000	USD
	us-gaap	Interest Expense InterestExpense	70000000	USD
	us-gaap	Interest Expense InterestExpense	79000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	37000000	USD
CY2011Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	23000000	USD
CY2012Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	18000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	45000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	33000000	USD
CY2012Q2	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	17000000	USD
CY2011Q2	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	17000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	34000000	USD
CY2012Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	416000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	695000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	837000000	USD
CY2011Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	346000000	USD
CY2012Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	435000000	USD
CY2011Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	391000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	786000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	878000000	USD
	us-gaap	Interest Paid InterestPaid	76000000	USD
	us-gaap	Interest Paid InterestPaid	69000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	511000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	473000000	USD
CY2011Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	235000000	USD
CY2012Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	250000000	USD
	us-gaap	Legal Fees LegalFees	17000000	USD
	us-gaap	Legal Fees LegalFees	18000000	USD
CY2012Q2	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5500000000	USD
CY2011Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5500000000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	54140000000	USD
CY2012Q2	us-gaap	Liabilities Liabilities	55622000000	USD
CY2011Q2	us-gaap	Liabilities Liabilities	48103000000	USD
CY2012Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	62650000000	USD
CY2011Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	54141000000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	61008000000	USD
CY2011Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	806000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	667000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	726000000	USD
CY2012Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	704000000	USD
CY2011Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	849000000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	901000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	8000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	13000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	719000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	860000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	43992000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	42679000000	USD
CY2011Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	39193000000	USD
CY2011Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	38387000000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	41953000000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	43325000000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	4944000000	USD
CY2012Q2	us-gaap	Long Term Debt LongTermDebt	4742000000	USD
CY2011Q2	us-gaap	Long Term Debt LongTermDebt	5206000000	USD
CY2012Q2	us-gaap	Maximum Potential Future Exposure On Credit Risk Derivatives MaximumPotentialFutureExposureOnCreditRiskDerivatives	12000000	USD
CY2011Q4	us-gaap	Maximum Potential Future Exposure On Credit Risk Derivatives MaximumPotentialFutureExposureOnCreditRiskDerivatives	12000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	80000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1358000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1205000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	841000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	432000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	462000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	197000000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	95000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	271000000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	142000000	USD
CY2011Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	16344000000	USD
CY2012Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	21330000000	USD
CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	19764000000	USD
	us-gaap	Noninterest Expense NoninterestExpense	882000000	USD
CY2012Q2	us-gaap	Noninterest Expense NoninterestExpense	433000000	USD
CY2011Q2	us-gaap	Noninterest Expense NoninterestExpense	411000000	USD
	us-gaap	Noninterest Expense NoninterestExpense	829000000	USD
	us-gaap	Noninterest Income NoninterestIncome	409000000	USD
CY2012Q2	us-gaap	Noninterest Income NoninterestIncome	211000000	USD
CY2011Q2	us-gaap	Noninterest Income NoninterestIncome	202000000	USD
	us-gaap	Noninterest Income NoninterestIncome	417000000	USD
CY2012Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	34000000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	66000000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	63000000	USD
CY2011Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	29000000	USD
CY2011Q4	us-gaap	Notional Amount Of Credit Risk Derivatives NotionalAmountOfCreditRiskDerivatives	394000000	USD
CY2012Q2	us-gaap	Notional Amount Of Credit Risk Derivatives NotionalAmountOfCreditRiskDerivatives	468000000	USD
CY2011Q4	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	17723000000	USD
CY2012Q2	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	20538000000	USD
	us-gaap	Occupancy Net OccupancyNet	81000000	USD
CY2012Q2	us-gaap	Occupancy Net OccupancyNet	40000000	USD
	us-gaap	Occupancy Net OccupancyNet	78000000	USD
CY2011Q2	us-gaap	Occupancy Net OccupancyNet	38000000	USD
CY2012Q2	us-gaap	Other Assets OtherAssets	4407000000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	4571000000	USD
CY2011Q2	us-gaap	Other Assets OtherAssets	3986000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	81000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	55000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5000000	USD
CY2011Q2	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	3000000	USD
CY2012Q2	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	3000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	6000000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	1371000000	USD
CY2011Q2	us-gaap	Other Liabilities OtherLiabilities	1072000000	USD
CY2012Q2	us-gaap	Other Liabilities OtherLiabilities	1409000000	USD
CY2012Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	55000000	USD
CY2011Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	46000000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	115000000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	94000000	USD
CY2011Q2	us-gaap	Other Short Term Investments OtherShortTermInvestments	124000000	USD
CY2011Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	149000000	USD
CY2012Q2	us-gaap	Other Short Term Investments OtherShortTermInvestments	170000000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-36000000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-3000000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1379000000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-822000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	58000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	34000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	125000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	35000000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	40000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1689000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1028000000	USD
CY2012Q2	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	1031000000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1893000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	4000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-63000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	13000000	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	5000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	33000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	1000000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	144000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	675000000	USD
CY2012Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	667000000	USD
CY2011Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	45000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	41000000	USD
	us-gaap	Profit Loss ProfitLoss	199000000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	96000000	USD
	us-gaap	Profit Loss ProfitLoss	274000000	USD
CY2011Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	641000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	91000000	USD
CY2012Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	19000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	193000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	940000000	USD
	us-gaap	Restructuring And Related Cost Expected Cost RestructuringAndRelatedCostExpectedCost	115000000	USD
	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	5000000	USD
	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	8000000	USD
CY2012Q2	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	8000000	USD
CY2011Q2	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	5000000	USD
	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	83000000	USD
CY2012Q2	us-gaap	Restructuring Reserve RestructuringReserve	17000000	USD
CY2012Q1	us-gaap	Restructuring Reserve RestructuringReserve	15000000	USD
CY2011Q4	us-gaap	Restructuring Reserve RestructuringReserve	26000000	USD
CY2012Q2	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	0	USD
	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	-6000000	USD
CY2012Q2	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	8000000	USD
	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	14000000	USD
CY2012Q2	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	6000000	USD
	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	17000000	USD
CY2011Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5395000000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5546000000	USD
CY2012Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5744000000	USD
CY2011Q2	us-gaap	Segment Reporting Information Average Assets SegmentReportingInformationAverageAssets	54148000000	USD
CY2012Q2	us-gaap	Segment Reporting Information Average Assets SegmentReportingInformationAverageAssets	61782000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	21000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	21000000	USD
CY2012Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	83000000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	70000000	USD
CY2011Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	67000000	USD
CY2012Q2	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-13000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-16000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2011Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6038000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6868000000	USD
CY2012Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7028000000	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 Of Other Real Estate TransferOfOtherRealEstate	20000000	USD
	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	30000000	USD
CY2011Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	27092427	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	30831076	shares
CY2012Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	33889392	shares
CY2011Q2	us-gaap	Treasury Stock Value TreasuryStockValue	1540000000	USD
CY2012Q2	us-gaap	Treasury Stock Value TreasuryStockValue	1700000000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1633000000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	21000000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	125000000	USD
	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	3000000	USD
CY2012Q2	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	2000000	USD
	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	2000000	USD
CY2011Q2	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1000000	USD
CY2012Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17000000	USD
CY2011Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27000000	USD
CY2012Q2	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	-7000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	10000000	USD
CY2012Q2	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	355000000	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
CY2012Q2	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	104000000	USD
	cma	Accretion Of Discount On Receivables Acquired In Transfer AccretionOfDiscountOnReceivablesAcquiredInTransfer	0	USD
	cma	Accretion Of Discount On Receivables Acquired In Transfer AccretionOfDiscountOnReceivablesAcquiredInTransfer	43000000	USD
CY2012Q2	cma	Allowance For Off Balance Sheet Credit Losses AllowanceForOffBalanceSheetCreditLosses	36000000	USD
CY2011Q4	cma	Allowance For Off Balance Sheet Credit Losses AllowanceForOffBalanceSheetCreditLosses	26000000	USD
	cma	Ars Portfolio Redeemed Or Sold Since Acquisition Percentage ArsPortfolioRedeemedOrSoldSinceAcquisitionPercentage	0.81
CY2012Q2	cma	Auction Rate Portfolio Rated By Credit Rating Agencies AuctionRatePortfolioRatedByCreditRatingAgencies	0.89
	cma	Average Balance During Period Deposits AverageBalanceDuringPeriodDeposits	41041000000	USD
	cma	Average Balance During Period Deposits AverageBalanceDuringPeriodDeposits	48495000000	USD
	cma	Average Balance During Period Loans And Leases Receivable Net Of Deferred Income AverageBalanceDuringPeriodLoansAndLeasesReceivableNetOfDeferredIncome	39361000000	USD
	cma	Average Balance During Period Loans And Leases Receivable Net Of Deferred Income AverageBalanceDuringPeriodLoansAndLeasesReceivableNetOfDeferredIncome	42749000000	USD
	cma	Card Fees CardFees	23000000	USD
CY2011Q2	cma	Card Fees CardFees	15000000	USD
CY2012Q2	cma	Card Fees CardFees	12000000	USD
	cma	Card Fees CardFees	30000000	USD
CY2011Q4	cma	Carrying Value Of Standby And Commercial Letters Of Credit CarryingValueOfStandbyAndCommercialLettersOfCredit	89000000	USD
CY2012Q2	cma	Carrying Value Of Standby And Commercial Letters Of Credit CarryingValueOfStandbyAndCommercialLettersOfCredit	97000000	USD
CY2012Q2	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Allowance For Credit Losses On Lending Related Commitments CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInAllowanceForCreditLossesOnLendingRelatedCommitments	23000000	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
CY2011Q4	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Deferred Fees CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees	72000000	USD
CY2012Q2	cma	Carrying Value Of Standby And Commercial Letters Of Credit Included In Deferred Fees CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees	74000000	USD
CY2011Q4	cma	Carrying Value Of Unused Commitments To Extend Credit CarryingValueOfUnusedCommitmentsToExtendCredit	9000000	USD
CY2012Q2	cma	Carrying Value Of Unused Commitments To Extend Credit CarryingValueOfUnusedCommitmentsToExtendCredit	13000000	USD
CY2012Q2	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	62000000	USD
CY2011Q4	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	87000000	USD
CY2011Q2	cma	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	0	USD
CY2012Q2	cma	Commercial Lending Fees CommercialLendingFees	24000000	USD
	cma	Commercial Lending Fees CommercialLendingFees	42000000	USD
CY2011Q2	cma	Commercial Lending Fees CommercialLendingFees	21000000	USD
	cma	Commercial Lending Fees CommercialLendingFees	49000000	USD
CY2011Q2	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	5551000000	USD
CY2011Q4	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	5808000000	USD
CY2012Q2	cma	Deposits Customer Certificates Deposits DepositsCustomerCertificatesDeposits	6045000000	USD
CY2012Q2	cma	Deposits Money Market Deposits And Interest Bearing Checking Deposits DepositsMoneyMarketDepositsAndInterestBearingCheckingDeposits	20008000000	USD
CY2011Q2	cma	Deposits Money Market Deposits And Interest Bearing Checking Deposits DepositsMoneyMarketDepositsAndInterestBearingCheckingDeposits	18033000000	USD
CY2011Q4	cma	Deposits Money Market Deposits And Interest Bearing Checking Deposits DepositsMoneyMarketDepositsAndInterestBearingCheckingDeposits	20311000000	USD
CY2012Q2	cma	Derivative Credit Valuation Adjustment For Counterparty Credit Risk DerivativeCreditValuationAdjustmentForCounterpartyCreditRisk	-6000000	USD
CY2011Q4	cma	Derivative Credit Valuation Adjustment For Counterparty Credit Risk DerivativeCreditValuationAdjustmentForCounterpartyCreditRisk	-4000000	USD
CY2011Q4	cma	Derivative Liability DerivativeLiability	6000000	USD
	cma	Efficiency Ratio EfficiencyRatio	0.6955
	cma	Efficiency Ratio EfficiencyRatio	0.6862
	cma	Employee Benefits Expense EmployeeBenefitsExpense	100000000	USD
	cma	Employee Benefits Expense EmployeeBenefitsExpense	121000000	USD
CY2012Q2	cma	Employee Benefits Expense EmployeeBenefitsExpense	61000000	USD
CY2011Q2	cma	Employee Benefits Expense EmployeeBenefitsExpense	50000000	USD
CY2012Q2	cma	Fair Value Assets Measured On Nonrecurring Basis Impaired Loans FairValueAssetsMeasuredOnNonrecurringBasisImpairedLoans	425000000	USD
CY2011Q4	cma	Fair Value Assets Measured On Nonrecurring Basis Impaired Loans FairValueAssetsMeasuredOnNonrecurringBasisImpairedLoans	564000000	USD
CY2012Q2	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
CY2011Q2	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-90000000	USD
	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-90000000	USD
	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-191000000	USD
CY2012Q2	cma	Financing Receivable Allowance For Credit Losses Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet	-45000000	USD
	cma	Foreign Exchange Income ForeignExchangeIncome	19000000	USD
	cma	Foreign Exchange Income ForeignExchangeIncome	19000000	USD
CY2011Q2	cma	Foreign Exchange Income ForeignExchangeIncome	10000000	USD
CY2012Q2	cma	Foreign Exchange Income ForeignExchangeIncome	10000000	USD
CY2011Q4	cma	Foreign Office Time Deposits ForeignOfficeTimeDeposits	348000000	USD
CY2011Q2	cma	Foreign Office Time Deposits ForeignOfficeTimeDeposits	368000000	USD
CY2012Q2	cma	Foreign Office Time Deposits ForeignOfficeTimeDeposits	376000000	USD
CY2011Q2	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	137000000	USD
	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	275000000	USD
	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	372000000	USD
CY2012Q2	cma	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	194000000	USD
CY2011Q2	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	949000000	USD
CY2012Q2	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	858000000	USD
CY2011Q4	cma	Leases Receivable Commercial Lease Financing Net Of Deferred Income LeasesReceivableCommercialLeaseFinancingNetOfDeferredIncome	905000000	USD
CY2011Q2	cma	Letter Of Credit Fees LetterOfCreditFees	18000000	USD
CY2012Q2	cma	Letter Of Credit Fees LetterOfCreditFees	18000000	USD
	cma	Letter Of Credit Fees LetterOfCreditFees	36000000	USD
	cma	Letter Of Credit Fees LetterOfCreditFees	35000000	USD
CY2012Q2	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2218000000	USD
CY2011Q2	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2232000000	USD
CY2011Q4	cma	Loans And Leases Receivable Consumer Loans Net Of Deferred Income LoansAndLeasesReceivableConsumerLoansNetOfDeferredIncome	2285000000	USD
CY2011Q2	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1491000000	USD
CY2011Q4	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1526000000	USD
CY2012Q2	cma	Loans And Leases Receivable Consumer Mortgage Net Of Deferred Income LoansAndLeasesReceivableConsumerMortgageNetOfDeferredIncome	1469000000	USD
CY2012Q2	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1224000000	USD
CY2011Q2	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1162000000	USD
CY2011Q4	cma	Loans And Leases Receivable Foreign Net Of Deferred Income Other LoansAndLeasesReceivableForeignNetOfDeferredIncomeOther	1170000000	USD
CY2011Q4	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	24996000000	USD
CY2012Q2	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	27016000000	USD
CY2011Q2	cma	Loans Receivable Commercial Financial And Agricultural Net Of Deferred Income LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome	22052000000	USD
CY2011Q4	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	10264000000	USD
CY2011Q2	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	9579000000	USD
CY2012Q2	cma	Loans Receivable Commercial Mortgage Net Of Deferred Income LoansReceivableCommercialMortgageNetOfDeferredIncome	9830000000	USD
CY2012Q2	cma	Loans Receivable Ratio Of Allowance For Loan Losses To All Loans LoansReceivableRatioOfAllowanceForLoanLossesToAllLoans	0.0152
CY2011Q2	cma	Loans Receivable Ratio Of Allowance For Loan Losses To All Loans LoansReceivableRatioOfAllowanceForLoanLossesToAllLoans	0.0206
CY2012Q2	cma	Longest Expiration Year Letters Of Credit LongestExpirationYearLettersOfCredit	2022
	cma	Net Credit Related Charge Offs NetCreditRelatedChargeOffs	191000000	USD
	cma	Net Credit Related Charge Offs NetCreditRelatedChargeOffs	90000000	USD
CY2012Q2	cma	Notional Amount Derivative In Shares NotionalAmountDerivativeInShares	780000	shares
	cma	Number Of Geographic Markets NumberOfGeographicMarkets	4	markets
	cma	Number Of Major Business Segments NumberOfMajorBusinessSegments	3	segments
	cma	Other Real Estate Expense OtherRealEstateExpense	4000000	USD
CY2011Q2	cma	Other Real Estate Expense OtherRealEstateExpense	6000000	USD
	cma	Other Real Estate Expense OtherRealEstateExpense	14000000	USD
CY2012Q2	cma	Other Real Estate Expense OtherRealEstateExpense	0	USD
CY2012Q2	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	26000000	USD
	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	49000000	USD
	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	52000000	USD
CY2011Q2	cma	Outside Processing Fee Expense OutsideProcessingFeeExpense	25000000	USD
CY2012Q2	cma	Partnership Interest In Low Income Housing Partnerships PartnershipInterestInLowIncomeHousingPartnerships	158	partnerships
	cma	Pending Settlement Of Matured Investment Securities Available For Sale PendingSettlementOfMaturedInvestmentSecuritiesAvailableForSale	0	USD
	cma	Pending Settlement Of Matured Investment Securities Available For Sale PendingSettlementOfMaturedInvestmentSecuritiesAvailableForSale	110000000	USD
CY2012Q2	cma	Percent Of Fair Value Derivative Contracts With Bilateral Agreements With Unrealized Gain Secured PercentOfFairValueDerivativeContractsWithBilateralAgreementsWithUnrealizedGainSecured	0.89
CY2011Q2	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1728000000	USD
CY2011Q4	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1533000000	USD
CY2012Q2	cma	Real Estate Construction Loans Net Of Deferred Income RealEstateConstructionLoansNetOfDeferredIncome	1377000000	USD
CY2012Q2	cma	Reduced Rate Loans ReducedRateLoans	28000000	USD
CY2011Q4	cma	Reduced Rate Loans ReducedRateLoans	27000000	USD
	cma	Restructuring And Related Cost Expected Cost Net Of Tax RestructuringAndRelatedCostExpectedCostNetOfTax	73000000	USD
	cma	Restructuring And Related Cost Incurred Costs Net Of Tax Effect RestructuringAndRelatedCostIncurredCostsNetOfTaxEffect	52000000	USD
	cma	Return On Average Assets ReturnOnAverageAssets	0.0073
	cma	Return On Average Assets ReturnOnAverageAssets	0.0089
CY2011Q4	cma	Risk Participations Covering Standby Commercial Letters Of Credit RiskParticipationsCoveringStandbyCommercialLettersOfCredit	271000000	USD
CY2012Q2	cma	Risk Participations Covering Standby Commercial Letters Of Credit RiskParticipationsCoveringStandbyCommercialLettersOfCredit	328000000	USD
CY2011Q2	cma	Salaries Expense SalariesExpense	185000000	USD
	cma	Salaries Expense SalariesExpense	373000000	USD
	cma	Salaries Expense SalariesExpense	390000000	USD
CY2012Q2	cma	Salaries Expense SalariesExpense	189000000	USD
	cma	Segment Reporting Information Interest Income Expense Net Fte SegmentReportingInformationInterestIncomeExpenseNetFte	788000000	USD
	cma	Segment Reporting Information Interest Income Expense Net Fte SegmentReportingInformationInterestIncomeExpenseNetFte	879000000	USD
	cma	Segment Reporting Information Tax Expense Fte SegmentReportingInformationTaxExpenseFte	78000000	USD
	cma	Segment Reporting Information Tax Expense Fte SegmentReportingInformationTaxExpenseFte	99000000	USD
	cma	Software Expenses SoftwareExpenses	44000000	USD
	cma	Software Expenses SoftwareExpenses	43000000	USD
CY2011Q2	cma	Software Expenses SoftwareExpenses	20000000	USD
CY2012Q2	cma	Software Expenses SoftwareExpenses	21000000	USD
CY2011Q4	cma	Total Internally Classified Watch List Letters Of Credit TotalInternallyClassifiedWatchListLettersOfCredit	195000000	USD
CY2012Q2	cma	Total Internally Classified Watch List Letters Of Credit TotalInternallyClassifiedWatchListLettersOfCredit	207000000	USD
CY2011Q4	cma	Total Nonperforming Assets TotalNonperformingAssets	981000000	USD
CY2012Q2	cma	Total Nonperforming Assets TotalNonperformingAssets	814000000	USD
CY2011Q4	cma	Total Nonperforming Loans TotalNonperformingLoans	887000000	USD
CY2012Q2	cma	Total Nonperforming Loans TotalNonperformingLoans	747000000	USD
	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	111000000	USD
	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	64000000	USD
CY2012Q2	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	31000000	USD
CY2011Q2	cma	Troubled Debt Restructuring Modifications Recorded Investment TroubledDebtRestructuringModificationsRecordedInvestment	56000000	USD
	cma	Underlying Assets Of Funds Estimated Liquidation Period UnderlyingAssetsOfFundsEstimatedLiquidationPeriod	18	years
CY2012	cma	Unrecognized Tax Benefits Interest On Income Taxes Accrued Change UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccruedChange	-7000000	USD
CY2012Q2	cma	Watch List Letters Of Credit As Percentage Of Total Letters Of Credit WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit	0.038
CY2011Q4	cma	Watch List Letters Of Credit As Percentage Of Total Letters Of Credit WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit	0.036
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
	dei	Document Period End Date DocumentPeriodEndDate	2012-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000028412
CY2012Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	193495548	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

Files In Submission

Name	View Source	Status
0000028412-12-000077-index-headers.html	Edgar Link	pending
0000028412-12-000077-index.html	Edgar Link	pending
0000028412-12-000077.txt	Edgar Link	pending
0000028412-12-000077-xbrl.zip	Edgar Link	pending
cma-20120630.xml	Edgar Link	completed
cma-20120630.xsd	Edgar Link	pending
cma-20120630_cal.xml	Edgar Link	unprocessable
cma-20120630_def.xml	Edgar Link	unprocessable
cma-20120630_lab.xml	Edgar Link	unprocessable
cma-20120630_pre.xml	Edgar Link	unprocessable
cma-201263010q.htm	Edgar Link	pending
cma-201263010q_ex311.htm	Edgar Link	pending
cma-201263010q_ex312.htm	Edgar Link	pending
cma-201263010q_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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R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CMA
COMERICA INC /NEW/ Stock $cma

2012 Q2 Form 10-Q Financial Statement

#000002841212000077 Filed on July 30, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMA COMERICA INC /NEW/ Stock $cma

2012 Q2 Form 10-Q Financial Statement

#000002841212000077 Filed on July 30, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMA
COMERICA INC /NEW/ Stock $cma