$FITB
FIFTH THIRD BANCORP Stock $fitb

$fitb Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000003552721000100 Filed on February 26, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018
Revenue			$5.183B
YoY Change			15.46%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development			$285.0M
YoY Change			16.33%
% of Gross Profit
Depreciation & Amortization	$183.0M	$85.00M	$73.00M
YoY Change	115.29%	-1.16%	-78.59%
% of Gross Profit
Operating Expenses			$285.0M
YoY Change			16.33%
Operating Profit
YoY Change
Interest Expense			$1.043B
YoY Change			50.94%
% of Operating Profit
Other Income/Expense, Net			$210.0M
YoY Change			12.9%
Pretax Income	$941.0M	$586.0M	$2.765B
YoY Change	60.58%	-2.33%	-7.18%
Income Tax	$207.0M	$130.0M	$572.0M
% Of Pretax Income	22.0%	22.18%	20.69%
Net Earnings	$734.0M	$456.0M	$2.193B
YoY Change	60.96%	-7.88%	0.6%
Net Earnings / Revenue			42.31%
Basic Earnings Per Share			$3.11
Diluted Earnings Per Share	$1.013M	$688.1K	$3.06
COMMON SHARES
Basic Shares Outstanding	709.7M shares	655.6M shares	673.0M shares
Diluted Shares Outstanding			685.0M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$3.278B	$2.681B
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	$1.995B	$1.861B	$1.861B
YoY Change	7.2%	-7.09%	-7.09%
Goodwill	$4.252B	$2.478B
YoY Change	71.59%	1.35%
Intangibles	$201.0M	$40.00M
YoY Change	402.5%	48.15%
Long-Term Investments		$420.0M	$420.0M
YoY Change		91.78%	91.78%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$169.4B	$146.1B	$146.1B
YoY Change	15.95%	2.73%	2.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$555.0M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$729.0M	$2.227B	$2.227B
YoY Change	-67.27%	209.31%	209.31%
Long-Term Debt Due			$6.000M
YoY Change
Total Short-Term Liabilities	$2.441B	$1.562B	$496.0M
YoY Change	56.27%	6.62%	28.83%
LONG-TERM LIABILITIES
Long-Term Debt	$14.97B	$14.43B	$14.40B
YoY Change	3.77%	-3.21%	-3.2%
Other Long-Term Liabilities	$2.964B	$2.769B	$2.769B
YoY Change	7.04%	11.43%	11.43%
Total Long-Term Liabilities	$17.93B	$17.20B	$17.17B
YoY Change	4.3%	-1.12%	-1.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.441B	$1.562B	$496.0M
Total Long-Term Liabilities	$17.93B	$17.20B	$17.17B
Total Liabilities	$148.2B	$129.8B	$129.8B
YoY Change	14.13%	3.14%	3.13%
SHAREHOLDERS EQUITY
Retained Earnings	$18.32B	$16.58B
YoY Change	10.48%	9.63%
Common Stock	$2.051B	$2.051B
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.724B	$6.471B
YoY Change	-11.54%	29.37%
Treasury Stock Shares	215.0M shares	277.3M shares
Shareholders Equity	$21.20B	$16.25B	$16.25B
YoY Change
Total Liabilities & Shareholders Equity	$169.4B	$146.1B	$146.1B
YoY Change	15.95%	2.81%	2.81%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$734.0M	$456.0M	$2.193B
YoY Change	60.96%	-7.88%	0.6%
Depreciation, Depletion And Amortization	$183.0M	$85.00M	$73.00M
YoY Change	115.29%	-1.16%	-78.59%
Cash From Operating Activities	$1.379B	$929.0M	$2.856B
YoY Change	48.44%	280.74%	92.97%
INVESTING ACTIVITIES
Capital Expenditures	-$63.00M	-$47.00M	$192.0M
YoY Change	34.04%	4.44%	-4.0%
Acquisitions
YoY Change
Other Investing Activities	$593.0M	-$3.193B	-$3.867B
YoY Change	-118.57%	637.41%	-624.69%
Cash From Investing Activities	$530.0M	-$3.240B	-$4.141B
YoY Change	-116.36%	577.82%	-1067.52%
FINANCING ACTIVITIES
Cash Dividend Paid			$565.0M
YoY Change
Common Stock Issuance & Retirement, Net			$1.453B
YoY Change			-9.47%
Debt Paid & Issued, Net			$2.884B
YoY Change			46.47%
Cash From Financing Activities	-1.892B	2.892B	$1.452B
YoY Change	-165.42%	432.6%	-181.3%
NET CHANGE
Cash From Operating Activities	1.379B	929.0M	$2.856B
Cash From Investing Activities	530.0M	-3.240B	-$4.141B
Cash From Financing Activities	-1.892B	2.892B	$1.452B
Net Change In Cash	17.00M	581.0M	$167.0M
YoY Change	-97.07%	88.03%	36.89%
FREE CASH FLOW
Cash From Operating Activities	$1.379B	$929.0M	$2.856B
Capital Expenditures	-$63.00M	-$47.00M	$192.0M
Free Cash Flow	$1.442B	$976.0M	$2.664B
YoY Change	47.75%	237.72%	108.13%

Facts In Submission

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CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	422000000	USD
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	285000000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	350000000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	332000000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	292000000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	140000000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	133000000	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	76000000	USD
CY2020	us-gaap	Equipment Expense EquipmentExpense	130000000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	129000000	USD
CY2018	us-gaap	Equipment Expense EquipmentExpense	123000000	USD
CY2020	fitb	Card And Processing Expense CardAndProcessingExpense	121000000	USD
CY2019	fitb	Card And Processing Expense CardAndProcessingExpense	130000000	USD
CY2018	fitb	Card And Processing Expense CardAndProcessingExpense	123000000	USD
CY2020	us-gaap	Marketing Expense MarketingExpense	104000000	USD
CY2019	us-gaap	Marketing Expense MarketingExpense	162000000	USD
CY2018	us-gaap	Marketing Expense MarketingExpense	147000000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	921000000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	934000000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	797000000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	4718000000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	4660000000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	3958000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1797000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3202000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2765000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	370000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	690000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	572000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1427000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2512000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	2193000000	USD
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	104000000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	93000000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	75000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1323000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2419000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2118000000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.84
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.38
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.11
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.83
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.33
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.06
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	714729585	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	710433611	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	673346168	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	719735415	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	720065498	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	685488498	shares
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1427000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2512000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	2193000000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1153000000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1046000000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-371000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	34000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-9000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	483000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	275000000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	169000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	187000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	13000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-2000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	9000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	5000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	7000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	8000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	7000000	USD
CY2020	fitb	Other Comprehensive Income Loss Other Adjustments After Tax OtherComprehensiveIncomeLossOtherAdjustmentsAfterTax	-4000000	USD
CY2019	fitb	Other Comprehensive Income Loss Other Adjustments After Tax OtherComprehensiveIncomeLossOtherAdjustmentsAfterTax	0	USD
CY2018	fitb	Other Comprehensive Income Loss Other Adjustments After Tax OtherComprehensiveIncomeLossOtherAdjustmentsAfterTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1409000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1304000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-183000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2836000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3816000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2010000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	16220000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	2193000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-183000000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.74
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	499000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1453000000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	65000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	22000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	16250000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2512000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1304000000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.94
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	691000000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1763000000	USD
CY2019	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	242000000	USD
CY2019	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	3356000000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	72000000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	-4000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21203000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21203000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1427000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1409000000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.08
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	780000000	USD
CY2020	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	346000000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	82000000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	0	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1427000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2512000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	2193000000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1097000000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	471000000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	207000000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	492000000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	472000000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	360000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	123000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	132000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	127000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-162000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-246000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	30000000	USD
CY2020	fitb	Gain Loss On Sale Of Securities Net Including Gains Losses In Corporate Banking Revenue GainLossOnSaleOfSecuritiesNetIncludingGainsLossesInCorporateBankingRevenue	69000000	USD
CY2019	fitb	Gain Loss On Sale Of Securities Net Including Gains Losses In Corporate Banking Revenue GainLossOnSaleOfSecuritiesNetIncludingGainsLossesInCorporateBankingRevenue	50000000	USD
CY2018	fitb	Gain Loss On Sale Of Securities Net Including Gains Losses In Corporate Banking Revenue GainLossOnSaleOfSecuritiesNetIncludingGainsLossesInCorporateBankingRevenue	-69000000	USD
CY2020	fitb	Msr Fair Value Adjustment MsrFairValueAdjustment	565000000	USD
CY2019	fitb	Msr Fair Value Adjustment MsrFairValueAdjustment	376000000	USD
CY2018	fitb	Msr Fair Value Adjustment MsrFairValueAdjustment	83000000	USD
CY2020	fitb	Gain Loss On Sale And Fair Value Adjustment On Loans And Leases GainLossOnSaleAndFairValueAdjustmentOnLoansAndLeases	291000000	USD
CY2019	fitb	Gain Loss On Sale And Fair Value Adjustment On Loans And Leases GainLossOnSaleAndFairValueAdjustmentOnLoansAndLeases	137000000	USD
CY2018	fitb	Gain Loss On Sale And Fair Value Adjustment On Loans And Leases GainLossOnSaleAndFairValueAdjustmentOnLoansAndLeases	71000000	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-31000000	USD
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-23000000	USD
CY2018	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-43000000	USD
CY2020	fitb	Net Losses On Disposition And Impairment Of Operating Lease Equipment NetLossesOnDispositionAndImpairmentOfOperatingLeaseEquipment	-5000000	USD
CY2019	fitb	Net Losses On Disposition And Impairment Of Operating Lease Equipment NetLossesOnDispositionAndImpairmentOfOperatingLeaseEquipment	1000000	USD
CY2018	fitb	Net Losses On Disposition And Impairment Of Operating Lease Equipment NetLossesOnDispositionAndImpairmentOfOperatingLeaseEquipment	-6000000	USD
CY2020	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	414000000	USD
CY2020	fitb	Proceeds From Sale Of Securities In Equity Method Investments ProceedsFromSaleOfSecuritiesInEquityMethodInvestments	0	USD
CY2019	fitb	Proceeds From Sale Of Securities In Equity Method Investments ProceedsFromSaleOfSecuritiesInEquityMethodInvestments	-562000000	USD
CY2018	fitb	Proceeds From Sale Of Securities In Equity Method Investments ProceedsFromSaleOfSecuritiesInEquityMethodInvestments	-205000000	USD
CY2020	fitb	Taxable Receivable Agreement Payment TaxableReceivableAgreementPayment	74000000	USD
CY2019	fitb	Taxable Receivable Agreement Payment TaxableReceivableAgreementPayment	346000000	USD
CY2018	fitb	Taxable Receivable Agreement Payment TaxableReceivableAgreementPayment	20000000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	12481000000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	8157000000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	5199000000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	14767000000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	8896000000	USD
CY2018	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	5378000000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	17000000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	66000000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	12000000	USD
CY2020	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-12000000	USD
CY2019	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	29000000	USD
CY2018	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-132000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	855000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-20000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-303000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	349000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-140000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	192000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	371000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1824000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2856000000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1743000000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10596000000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	12430000000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	157000000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	259000000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	305000000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	33000000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	90000000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	57000000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	3646000000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2271000000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1851000000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	5266000000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	13959000000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	16207000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	305000000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	243000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	192000000	USD
CY2020	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	44000000	USD
CY2019	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	26000000	USD
CY2018	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	82000000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	19000000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	28000000	USD
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	16000000	USD
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	69000000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	1057000000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	604000000	USD
CY2020	fitb	Net Cash Paid On Acquisitions Received From Divestitures NetCashPaidOnAcquisitionsReceivedFromDivestitures	4000000	USD
CY2019	fitb	Net Cash Paid On Acquisitions Received From Divestitures NetCashPaidOnAcquisitionsReceivedFromDivestitures	-1210000000	USD
CY2018	fitb	Net Cash Paid On Acquisitions Received From Divestitures NetCashPaidOnAcquisitionsReceivedFromDivestitures	43000000	USD
CY2020	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	31446000000	USD
CY2019	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	612000000	USD
CY2018	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-928000000	USD
CY2020	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	451000000	USD
CY2019	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	1407000000	USD
CY2018	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	3866000000	USD
CY2020	fitb	Payments To Proceed From Acquireequipmentonlease PaymentsToProceedFromAcquireequipmentonlease	53000000	USD
CY2019	fitb	Payments To Proceed From Acquireequipmentonlease PaymentsToProceedFromAcquireequipmentonlease	61000000	USD
CY2018	fitb	Payments To Proceed From Acquireequipmentonlease PaymentsToProceedFromAcquireequipmentonlease	-58000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-31902000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-797000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4141000000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	32019000000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	3742000000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	5673000000	USD
CY2020	fitb	Proceeds From Payments For Other Short Term Borrowings And Federal Funds Purchased ProceedsFromPaymentsForOtherShortTermBorrowingsAndFederalFundsPurchased	182000000	USD
CY2019	fitb	Proceeds From Payments For Other Short Term Borrowings And Federal Funds Purchased ProceedsFromPaymentsForOtherShortTermBorrowingsAndFederalFundsPurchased	-1494000000	USD
CY2018	fitb	Proceeds From Payments For Other Short Term Borrowings And Federal Funds Purchased ProceedsFromPaymentsForOtherShortTermBorrowingsAndFederalFundsPurchased	-1688000000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	858000000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	753000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	565000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2557000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3866000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2438000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2799000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	4212000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2884000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1763000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1453000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	346000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	242000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-47000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-58000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-69000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	31400000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-430000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1452000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-131000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	597000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	167000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3278000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3278000000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2681000000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2681000000	USD
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2514000000	USD
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3147000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3278000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3278000000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2681000000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2681000000	USD
CY2020	us-gaap	Nature Of Operations NatureOfOperations	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-style:italic;font-weight:700;line-height:120%">Nature of Operations</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Fifth Third Bancorp, an Ohio corporation, conducts its principal lending, deposit gathering, transaction processing and service advisory activities through its banking and non-banking subsidiaries from banking centers located throughout the Midwestern and Southeastern regions of the United States.</span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.</span></div>
CY2020Q4	fitb	Commercial Loans On Nonaccrual Status CommercialLoansOnNonaccrualStatus	1000000	USD
CY2020Q4	us-gaap	Financing Receivable Threshold Period Past Due FinancingReceivableThresholdPeriodPastDue	P180D
CY2020Q4	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P120D
CY2020Q4	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P120D
CY2020Q4	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P120D
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-style:italic;font-weight:700;line-height:120%">ALLL</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp disaggregates its portfolio loans and leases into portfolio segments for purposes of determining the ALLL. The Bancorp’s portfolio segments include commercial, residential mortgage and consumer. The Bancorp further disaggregates its portfolio segments into classes for purposes of monitoring and assessing credit quality based on certain risk characteristics. Classes within the commercial portfolio segment include commercial and industrial, commercial mortgage owner-occupied, commercial mortgage nonowner-occupied, commercial construction and commercial leasing. The residential mortgage portfolio segment is also considered a class. Classes within the consumer portfolio segment include home equity, indirect secured consumer, credit card and other consumer loans. For an analysis of the Bancorp’s ALLL by portfolio segment and credit quality information by class, refer to Note 7.</span></div><div style="text-align:justify;text-indent:18pt"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp maintains the ALLL to absorb the amount of credit losses that are expected to be incurred over the remaining contractual terms of the related loans and leases. Contractual terms are adjusted for expected prepayments but are not extended for expected extensions, </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">renewals or modifications except in circumstances where the Bancorp reasonably expects to execute a TDR with the borrower or where certain extension or renewal options are embedded in the original contract and not unconditionally cancellable by the Bancorp.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Accrued interest receivable on loans is presented in the Consolidated Financial Statements as a component of other assets. When accrued interest is deemed to be uncollectible (typically when a loan is placed on nonaccrual status), interest income is reversed. The Bancorp follows established policies for placing loans on nonaccrual status, so uncollectible accrued interest receivable is reversed in a timely manner. As a result, the Bancorp has elected not to measure an allowance for credit losses for accrued interest receivable. Refer to the Portfolio Loans and Leases section for additional information.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Credit losses are charged and recoveries are credited to the ALLL. The ALLL is maintained at a level the Bancorp considers to be adequate and is based on ongoing quarterly assessments and evaluations of the collectability of loans and leases, including historical credit loss experience, current and forecasted market and economic conditions and consideration of various qualitative factors that, in management’s judgment, deserve consideration in estimating credit losses. Provisions for credit losses are recorded for the amounts necessary to adjust the ALLL to the Bancorp’s current estimate of expected credit losses on portfolio loans and leases. The Bancorp’s strategy for credit risk management includes a combination of conservative exposure limits significantly below legal lending limits and conservative underwriting, documentation and collections standards. The strategy also emphasizes diversification on a geographic, industry and customer level, regular credit examinations and quarterly management reviews of large credit exposures and loans experiencing deterioration of credit quality.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp’s methodology for determining the ALLL includes an estimate of expected credit losses on a collective basis for groups of loans and leases with similar risk characteristics and specific allowances for loans and leases which are individually evaluated.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Larger commercial loans and leases included within aggregate borrower relationship balances exceeding $1 million that exhibit probable or observed credit weaknesses, as well as loans that have been modified in a TDR, are individually evaluated for an ALLL. The Bancorp considers the current value of collateral, credit quality of any guarantees, the guarantor’s liquidity and willingness to cooperate, the loan structure and other factors when determining the amount of ALLL. Other factors may include the borrower’s susceptibility to risks presented by the forecasted macroeconomic environment, the industry and geographic region of the borrower, size and financial condition of the borrower, cash flow and leverage of the borrower and the Bancorp’s evaluation of the borrower’s management. When loans and leases are individually evaluated, allowances are determined based on management’s estimate of the borrower’s ability to repay the loan or lease given the availability of collateral and other sources of cash flow, as well as an evaluation of legal options available to the Bancorp. Allowances for individually evaluated loans and leases that are collateral-dependent are measured based on the fair value of the underlying collateral, less expected costs to sell where applicable. Individually evaluated loans and leases that are not collateral-dependent are measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate. The Bancorp evaluates the collectability of both principal and interest when assessing the need for a loss accrual. Specific allowances on individually evaluated commercial loans and leases, including TDRs, are reviewed quarterly and adjusted as necessary based on changing borrower and/or collateral conditions and actual collection and charge-off experience.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Expected credit losses are estimated on a collective basis for loans and leases that are not individually evaluated. These include commercial loans and leases that do not meet the criteria for individual evaluation as well as homogeneous loans and leases in the residential mortgage and consumer portfolio segments. For collectively evaluated loans and leases, the Bancorp uses models to forecast expected credit losses based on the probability of a loan or lease defaulting, the expected balance at the estimated date of default and the expected loss percentage given a default. The estimate of the expected balance at the time of default considers prepayments and, for loans with available credit, expected utilization rates. The Bancorp’s expected credit loss models were developed based on historical credit loss experience and observations of migration patterns for various credit risk characteristics (such as internal credit risk grades, external credit ratings or scores, delinquency status, loan-to-value trends, etc.) over time, with those observations evaluated in the context of concurrent macroeconomic conditions. The Bancorp developed its models from historical observations capturing a full economic cycle when possible.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp’s expected credit loss models consider historical credit loss experience, current market and economic conditions, and forecasted changes in market and economic conditions if such forecasts are considered reasonable and supportable. Generally, the Bancorp considers its forecasts to be reasonable and supportable for a period of up to three years from the estimation date. For periods beyond the reasonable and supportable forecast period, expected credit losses are estimated by reverting to historical loss information without adjustment for changes in economic conditions. This reversion is phased in over a two-year period. The Bancorp evaluates the length of its reasonable and supportable forecast period, its reversion period and reversion methodology at least annually, or more often if warranted by economic conditions or other circumstances.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp also considers qualitative factors in determining the ALLL. Qualitative factors are used to capture characteristics in the portfolio that impact expected credit losses but that are not fully captured within the Bancorp’s expected credit loss models. These include adjustments for changes in policies or procedures in underwriting, monitoring or collections, lending and risk management personnel and results of internal audit and quality control reviews. These may also include adjustments, when deemed necessary, for specific idiosyncratic risks such as geopolitical events, natural disasters and their effects on regional borrowers, and changes in product structures. Qualitative factors may also be used to address the impacts of unforeseen events on key inputs and assumptions within the Bancorp’s expected credit loss models, </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">such as the reasonable and supportable forecast period, changes to historical loss information or changes to the reversion period or methodology.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">When evaluating the adequacy of allowances, consideration is also given to regional geographic concentrations and the closely associated effect changing economic conditions have on the Bancorp’s customers.</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-style:italic;font-weight:400;line-height:120%">ALLL </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp maintained the ALLL to absorb probable loan and lease losses inherent in its portfolio segments. The ALLL was maintained at a level the Bancorp considered to be adequate and was based on ongoing quarterly assessments and evaluations of the collectability and historical loss experience of loans and leases. Credit losses were charged and recoveries were credited to the ALLL. Provisions for loan and lease losses were based on the Bancorp’s review of the historical credit loss experience and such factors that, in management’s judgment, deserved consideration under existing economic conditions in estimating probable credit losses.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp’s methodology for determining the ALLL required significant management judgment and was based on historical loss rates, current credit grades, specific allocation on loans modified in a TDR and impaired commercial credits above specified thresholds and other qualitative adjustments. Allowances on individual commercial loans and leases, TDRs and historical loss rates were reviewed quarterly and adjusted as necessary based on changing borrower and/or collateral conditions and actual collection and charge-off experience. An unallocated allowance was maintained to recognize the imprecision in estimating and measuring losses when evaluating allowances for pools of loans and leases.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Larger commercial loans and leases included within aggregate borrower relationship balances exceeding $1 million that exhibited probable or observed credit weaknesses, as well as loans that had been modified in a TDR, were subject to individual review for impairment. The Bancorp considered the current value of collateral, credit quality of any guarantees, the guarantor’s liquidity and willingness to cooperate, the loan or lease structure and other factors when evaluating whether an individual loan or lease was impaired. Other factors might include the industry and geographic region of the borrower, size and financial condition of the borrower, cash flow and leverage of the borrower and the Bancorp’s evaluation of the borrower’s management. When individual loans and leases were impaired, allowances were determined based on management’s estimate of the borrower’s ability to repay the loan or lease given the availability of collateral and other sources of cash flow, as well as an evaluation of legal options available to the Bancorp. Allowances for impaired loans and leases were measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, fair value of the underlying collateral or readily observable secondary market values. The Bancorp evaluated the collectability of both principal and interest when assessing the need for a loss accrual.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Historical credit loss rates were applied to commercial loans and leases that were not impaired or were impaired, but smaller than the established threshold of $1 million and thus not subject to specific allowance allocations. The loss rates were derived from migration analyses for several portfolio stratifications, which tracked the historical net charge-off experience sustained on loans and leases according to their internal risk grade. The risk grading system utilized for allowance analysis purposes encompassed ten categories, which were based on regulatory guidance for credit risk systems.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">Homogenous loans in the residential mortgage and consumer portfolio segments were not individually risk graded. Rather, standard credit scoring systems and delinquency monitoring were used to assess credit risks and allowances were established based on the expected net charge-offs. Loss rates were based on the trailing twelve-month net charge-off history by loan category. Historical loss rates were adjusted for certain prescriptive and qualitative factors that, in management’s judgment, were necessary to reflect losses inherent in the portfolio. The prescriptive loss rate factors included adjustments for delinquency trends, LTV trends, refreshed FICO score trends and product mix.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9.5pt;font-weight:400;line-height:120%">The Bancorp also considered qualitative factors in determining the ALLL. These included adjustments for changes in policies or procedures in underwriting, monitoring or collections, economic conditions, portfolio mix, lending and risk management personnel, results of internal audit and quality control reviews, collateral values, geographic concentrations, estimated loss emergence period and specific portfolio loans </span></div>backed by enterprise valuations and private equity sponsors. The Bancorp considered home price index trends in its footprint and the volatility of collateral valuation trends when determining the collateral value qualitative factor.
CY2020	fitb	Defined Benefit Plan Net Gain Loss In Excess Of Projected Benefit Obligation Percentage DefinedBenefitPlanNetGainLossInExcessOfProjectedBenefitObligationPercentage	0.10
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	653000000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	33000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	825000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	1441000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	1016000000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	491000000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	726000000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	359000000	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	926000000	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	211000000	USD
CY2018	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	275000000	USD
CY2020	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	49000000	USD
CY2019	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	37000000	USD
CY2018	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	95000000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	12000000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	29000000	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	39000000	USD
CY2020	fitb	Transfer Of Loans Held For Sale To Other Real Estate Owned TransferOfLoansHeldForSaleToOtherRealEstateOwned	2000000	USD
CY2019	fitb	Transfer Of Loans Held For Sale To Other Real Estate Owned TransferOfLoansHeldForSaleToOtherRealEstateOwned	0	USD
CY2018	fitb	Transfer Of Loans Held For Sale To Other Real Estate Owned TransferOfLoansHeldForSaleToOtherRealEstateOwned	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	56000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	76000000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	110000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	24000000	USD
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CY2020	fitb	Right Of Use Assets Obtain In Exchange For Liabilities RightOfUseAssetsObtainInExchangeForLiabilities	0	USD
CY2019	fitb	Right Of Use Assets Obtain In Exchange For Liabilities RightOfUseAssetsObtainInExchangeForLiabilities	509000000	USD
CY2018	fitb	Right Of Use Assets Obtain In Exchange For Liabilities RightOfUseAssetsObtainInExchangeForLiabilities	0	USD
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CY2018	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2020Q4	us-gaap	Cash Reserve Deposit Required And Made CashReserveDepositRequiredAndMade	0	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Commercial Contractually Required Payments Receivable At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCommercialContractuallyRequiredPaymentsReceivableAtAcquisition	1139000000	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Nonaccretable Difference CertainLoansAcquiredInTransferNonaccretableDifference	81000000	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Commercial Cash Flows Expected To Be Collected At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCommercialCashFlowsExpectedToBeCollectedAtAcquisition	1058000000	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	202000000	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	856000000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	0	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions	202000000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	41000000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	14000000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	147000000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	33000000	USD
CY2020Q1	fitb	Deteriorated Financing Receivable Unpaid Principal Balance As Allowance For Noncredit Discount DeterioratedFinancingReceivableUnpaidPrincipalBalanceAsAllowanceForNoncreditDiscount	87000000	USD
CY2020Q1	us-gaap	Cash Reserve Deposit Required And Made CashReserveDepositRequiredAndMade	0	USD
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CY2019	fitb	Dividend Received From Nonbank Companies And Related Subsidiaries DividendReceivedFromNonbankCompaniesAndRelatedSubsidiaries	2000000000.0	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	34982000000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2568000000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	37000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	37513000000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	34966000000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1105000000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	43000000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	36028000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	11000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	11000000	USD
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	17000000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	17000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	40000000	USD
CY2020Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	482000000	USD
CY2020Q4	fitb	Depository Trust Clearing Corporation Stock DepositoryTrustClearingCorporationStock	2000000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	76000000	USD
CY2019Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	478000000	USD
CY2019Q4	fitb	Depository Trust Clearing Corporation Stock DepositoryTrustClearingCorporationStock	2000000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	560000000	USD
CY2019Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	297000000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	313000000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	564000000	USD
CY2020Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	87000000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	31000000	USD
CY2018	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-44000000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	47000000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	60000000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	72000000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	2000000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	50000000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	82000000	USD
CY2020	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2019	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	45000000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	9000000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-10000000	USD
CY2020	fitb	Total Trading Securities Gains Losses TotalTradingSecuritiesGainsLosses	2000000	USD
CY2019	fitb	Total Trading Securities Gains Losses TotalTradingSecuritiesGainsLosses	3000000	USD
CY2018	fitb	Total Trading Securities Gains Losses TotalTradingSecuritiesGainsLosses	-15000000	USD
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	17000000	USD
CY2020	fitb	Total Available For Sale And Trading Securities Gains Losses TotalAvailableForSaleAndTradingSecuritiesGainsLosses	64000000	USD
CY2019	fitb	Total Available For Sale And Trading Securities Gains Losses TotalAvailableForSaleAndTradingSecuritiesGainsLosses	43000000	USD
CY2018	fitb	Total Available For Sale And Trading Securities Gains Losses TotalAvailableForSaleAndTradingSecuritiesGainsLosses	-69000000	USD
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7000000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	26000000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-45000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	11000000000.0	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	8100000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	633000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	648000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	2000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	2000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	15881000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	16959000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	7000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	7000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	12214000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	13385000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	5730000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	5997000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	2000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	2000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	524000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	524000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	0	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	34982000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	37513000000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	4741000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	11000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	11000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1336000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	20000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	604000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	17000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1940000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	37000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	4128000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	34000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	383000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	9000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	4511000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	43000000	USD
CY2019Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	1400000000	USD
CY2020Q4	fitb	Loans Receivable Net Commercial And Industrial LoansReceivableNetCommercialAndIndustrial	49665000000	USD
CY2019Q4	fitb	Loans Receivable Net Commercial And Industrial LoansReceivableNetCommercialAndIndustrial	50542000000	USD
CY2020Q4	fitb	Loans Receivable Net Commercial Mortgage LoansReceivableNetCommercialMortgage	10602000000	USD
CY2019Q4	fitb	Loans Receivable Net Commercial Mortgage LoansReceivableNetCommercialMortgage	10963000000	USD
CY2020Q4	fitb	Loans Receivable Net Commercial Construction LoansReceivableNetCommercialConstruction	5815000000	USD
CY2019Q4	fitb	Loans Receivable Net Commercial Construction LoansReceivableNetCommercialConstruction	5090000000	USD
CY2020Q4	fitb	Leases Receivable Net Commercial Lease Financing LeasesReceivableNetCommercialLeaseFinancing	2915000000	USD
CY2019Q4	fitb	Leases Receivable Net Commercial Lease Financing LeasesReceivableNetCommercialLeaseFinancing	3363000000	USD
CY2020Q4	fitb	Loans And Leases Receivable Net Consumer Mortgage LoansAndLeasesReceivableNetConsumerMortgage	15928000000	USD
CY2019Q4	fitb	Loans And Leases Receivable Net Consumer Mortgage LoansAndLeasesReceivableNetConsumerMortgage	16724000000	USD
CY2020Q4	fitb	Loans And Leases Receivable Net Consumer Home Equity LoansAndLeasesReceivableNetConsumerHomeEquity	5183000000	USD
CY2019Q4	fitb	Loans And Leases Receivable Net Consumer Home Equity LoansAndLeasesReceivableNetConsumerHomeEquity	6083000000	USD
CY2020Q4	fitb	Loans Leases Receivable Consumer Installments LoansLeasesReceivableConsumerInstallments	13653000000	USD
CY2019Q4	fitb	Loans Leases Receivable Consumer Installments LoansLeasesReceivableConsumerInstallments	11538000000	USD
CY2020Q4	fitb	Loans And Leases Receivable Net Consumer Revolving Credit Card LoansAndLeasesReceivableNetConsumerRevolvingCreditCard	2007000000	USD
CY2019Q4	fitb	Loans And Leases Receivable Net Consumer Revolving Credit Card LoansAndLeasesReceivableNetConsumerRevolvingCreditCard	2532000000	USD
CY2020Q4	fitb	Loans And Leases Receivable Net Consumer Revolving Other LoansAndLeasesReceivableNetConsumerRevolvingOther	3014000000	USD
CY2019Q4	fitb	Loans And Leases Receivable Net Consumer Revolving Other LoansAndLeasesReceivableNetConsumerRevolvingOther	2723000000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	108782000000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	109558000000	USD
CY2020Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	280000000	USD
CY2019Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	354000000	USD
CY2020Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	251000000	USD
CY2019Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	249000000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	350000000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	15500000000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	16700000000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	37800000000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	47300000000	USD
CY2020Q4	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	113523000000	USD
CY2019Q4	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	110958000000	USD
CY2020Q4	us-gaap	Delinquent Amount At End Of Period On Loans Managed And Securitized DelinquentAmountAtEndOfPeriodOnLoansManagedAndSecuritized	163000000	USD
CY2019Q4	us-gaap	Delinquent Amount At End Of Period On Loans Managed And Securitized DelinquentAmountAtEndOfPeriodOnLoansManagedAndSecuritized	130000000	USD
CY2020	fitb	Net Chargeoffs NetChargeoffs	471000000	USD
CY2019	fitb	Net Chargeoffs NetChargeoffs	369000000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	4741000000	USD
CY2019Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	1400000000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	108782000000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	109558000000	USD
CY2020Q4	us-gaap	Leveraged Leases Balance Sheet Investment In Leveraged Leases Net LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet	323000000	USD
CY2019Q4	us-gaap	Leveraged Leases Balance Sheet Investment In Leveraged Leases Net LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet	429000000	USD
CY2020	us-gaap	Direct Financing Lease Lease Income DirectFinancingLeaseLeaseIncome	64000000	USD
CY2019	us-gaap	Direct Financing Lease Lease Income DirectFinancingLeaseLeaseIncome	88000000	USD
CY2020	us-gaap	Sales Type Lease Lease Income SalesTypeLeaseLeaseIncome	28000000	USD
CY2019	us-gaap	Sales Type Lease Lease Income SalesTypeLeaseLeaseIncome	13000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1202000000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	611000000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	140000000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1079000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	2453000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1103000000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	510000000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	141000000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	468000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1202000000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1196000000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	450000000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	120000000	USD
CY2018	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	237000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1103000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	225000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	2228000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	2453000000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	1863000000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	106343000000	USD
CY2020Q4	fitb	Financing Receivable Purchased With Credit Deterioration FinancingReceivablePurchasedWithCreditDeterioration	415000000	USD
CY2020Q4	fitb	Financing Receivable After Allowance For Credit Loss Excluding Residential Mortgage Loans Measured At Fair Value FinancingReceivableAfterAllowanceForCreditLossExcludingResidentialMortgageLoansMeasuredAtFairValue	108621000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	170000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	911000000	USD
CY2019Q4	fitb	Financing Receivable Allowance For Credit Losses Unallocated FinancingReceivableAllowanceForCreditLossesUnallocated	121000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1202000000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	1529000000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	107295000000	USD
CY2020Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	136000000	USD
CY2019Q4	fitb	Financing Receivable Purchased With Credit Deterioration FinancingReceivablePurchasedWithCreditDeterioration	551000000	USD
CY2019Q4	fitb	Financing Receivable After Allowance For Credit Loss Excluding Residential Mortgage Loans Measured At Fair Value FinancingReceivableAfterAllowanceForCreditLossExcludingResidentialMortgageLoansMeasuredAtFairValue	109375000000	USD
CY2020Q4	fitb	Financing Receivable Net Amount For Amortized Cost Basis FinancingReceivableNetAmountForAmortizedCostBasis	1178000000	USD
CY2020Q4	fitb	Financing Receivable Nonaccrual With Related Allowance FinancingReceivableNonaccrualWithRelatedAllowance	382000000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	482000000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	864000000	USD
CY2020	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	51000000	USD
CY2019Q4	fitb	Financing Receivable Nonperforming Nonaccrual Of Interest FinancingReceivableNonperformingNonaccrualOfInterest	618000000	USD
CY2019Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	62000000	USD
CY2019Q4	fitb	Nonperforming Portfolio Assets NonperformingPortfolioAssets	680000000	USD
CY2019Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	212000000	USD
CY2020Q4	fitb	Line Of Credit Commitments LineOfCreditCommitments	67000000	USD
CY2020Q4	fitb	Letter Of Credit Commitments LetterOfCreditCommitments	72000000	USD
CY2019Q4	fitb	Line Of Credit Commitments LineOfCreditCommitments	41000000	USD
CY2019Q4	fitb	Letter Of Credit Commitments LetterOfCreditCommitments	58000000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	6531	loan
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	525000000	USD
CY2020	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	22000000	USD
CY2020	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	8000000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	7056	loan
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	374000000	USD
CY2019	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	-10000000	USD
CY2019	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	8000000	USD
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	8869	loan
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	415000000	USD
CY2018	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	13000000	USD
CY2018	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	9000000	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	457	contract
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	43000000	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	961	contract
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	66000000	USD
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	900	contract
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	100000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3072000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2889000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2088000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1995000000	USD
CY2020	us-gaap	Depreciation Nonproduction DepreciationNonproduction	256000000	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	255000000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	238000000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	30000000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	28000000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	45000000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	14000000	USD
CY2020Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	777000000	USD
CY2019Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	848000000	USD
CY2020Q4	fitb	Net Investment In Lease Accumulated Amortization NetInvestmentInLeaseAccumulatedAmortization	290000000	USD
CY2019Q4	fitb	Net Investment In Lease Accumulated Amortization NetInvestmentInLeaseAccumulatedAmortization	237000000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	156000000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	151000000	USD
CY2018	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	84000000	USD
CY2020	us-gaap	Depreciation Depreciation	126000000	USD
CY2019	us-gaap	Depreciation Depreciation	122000000	USD
CY2018	us-gaap	Depreciation Depreciation	73000000	USD
CY2020	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	161000000	USD
CY2019	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	157000000	USD
CY2020	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	7000000	USD
CY2019	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	3000000	USD
CY2018	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	4000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	423000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	473000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	129000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	34000000	USD
CY2020Q4	fitb	Right Of Use Assets RightOfUseAssets	552000000	USD
CY2019Q4	fitb	Right Of Use Assets RightOfUseAssets	507000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	527000000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	555000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	130000000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	35000000	USD
CY2020Q4	fitb	Total Lease Liabilities TotalLeaseLiabilities	657000000	USD
CY2019Q4	fitb	Total Lease Liabilities TotalLeaseLiabilities	590000000	USD
CY2020Q4	fitb	Operating Lease Right Of Use Asset Accumulated Amortization OperatingLeaseRightOfUseAssetAccumulatedAmortization	152000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	29000000	USD
CY2019Q4	fitb	Operating Lease Right Of Use Asset Accumulated Amortization OperatingLeaseRightOfUseAssetAccumulatedAmortization	75000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	27000000	USD
CY2020	fitb	Finance Lease Cost FinanceLeaseCost	14000000	USD
CY2019	fitb	Finance Lease Cost FinanceLeaseCost	7000000	USD
CY2020	fitb	Operating Lease Costs OperatingLeaseCosts	137000000	USD
CY2019	fitb	Operating Lease Costs OperatingLeaseCosts	124000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	151000000	USD
CY2019	us-gaap	Lease Cost LeaseCost	131000000	USD
CY2020	fitb	Operating Lease Impairment Loss And Termination Charges OperatingLeaseImpairmentLossAndTerminationCharges	8000000	USD
CY2019	fitb	Operating Lease Impairment Loss And Termination Charges OperatingLeaseImpairmentLossAndTerminationCharges	15000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	86000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	18000000	USD
CY2020Q4	fitb	Lease Liability Payments Due Year One LeaseLiabilityPaymentsDueYearOne	104000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	81000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	19000000	USD
CY2020Q4	fitb	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	100000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	74000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	16000000	USD
CY2020Q4	fitb	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	90000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	65000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	17000000	USD
CY2020Q4	fitb	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	82000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	58000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	10000000	USD
CY2020Q4	fitb	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	68000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	246000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	78000000	USD
CY2020Q4	fitb	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	324000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	610000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	158000000	USD
CY2020Q4	fitb	Lease Liability Payments Due LeaseLiabilityPaymentsDue	768000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	83000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	28000000	USD
CY2020Q4	fitb	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	111000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	527000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	130000000	USD
CY2020Q4	fitb	Total Lease Liabilities1 TotalLeaseLiabilities1	657000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y21D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y5M23D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P12Y11M4D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P14Y2M1D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0305
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0319
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0239
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0430
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	91000000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	97000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3000000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	11000000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5000000	USD
CY2020	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	3000000	USD
CY2019	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	5000000	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	3443000000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	965000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2478000000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1777000000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	3000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4252000000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	28000000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	22000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4258000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	273000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	134000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	139000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	298000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	97000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	201000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	54000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	43000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	33000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	24000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	16000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	9000000	USD
CY2020	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	11827000000	USD
CY2019	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	7781000000	USD
CY2018	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	5078000000	USD
CY2020	fitb	Origination Fees And Gains On Loan Sales OriginationFeesAndGainsOnLoanSales	315000000	USD
CY2019	fitb	Origination Fees And Gains On Loan Sales OriginationFeesAndGainsOnLoanSales	175000000	USD
CY2018	fitb	Origination Fees And Gains On Loan Sales OriginationFeesAndGainsOnLoanSales	100000000	USD
CY2020	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	263000000	USD
CY2019	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	267000000	USD
CY2018	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	216000000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	993000000	USD
CY2018Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	938000000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	184000000	USD
CY2019	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	142000000	USD
CY2020	fitb	Servicing Asset At Fair Value Purchases ServicingAssetAtFairValuePurchases	44000000	USD
CY2019	fitb	Servicing Asset At Fair Value Purchases ServicingAssetAtFairValuePurchases	26000000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	0	USD
CY2019	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	263000000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-311000000	USD
CY2019	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-203000000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-254000000	USD
CY2019	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-173000000	USD
CY2020Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	656000000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	993000000	USD
CY2020	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	2000000	USD
CY2019	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	3000000	USD
CY2018	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	-15000000	USD
CY2020	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	307000000	USD
CY2019	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	221000000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-21000000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-311000000	USD
CY2019	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-203000000	USD
CY2018	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	42000000	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	741000000	USD
CY2020	fitb	Loans Serviced For Others LoansServicedForOthers	68800000000	USD
CY2019	fitb	Loans Serviced For Others LoansServicedForOthers	80700000000	USD
CY2020Q4	fitb	Variation Margin Payments Derivative Assets VariationMarginPaymentsDerivativeAssets	1100000000	USD
CY2019Q4	fitb	Variation Margin Payments Derivative Assets VariationMarginPaymentsDerivativeAssets	623000000	USD
CY2020Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	42000000	USD
CY2019Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	17000000	USD
CY2020Q4	fitb	Variation Margin Payments Derivative Liabilities VariationMarginPaymentsDerivativeLiabilities	1100000000	USD
CY2019Q4	fitb	Variation Margin Payments Derivative Liabilities VariationMarginPaymentsDerivativeLiabilities	488000000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	2919000000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	1072000000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	1673000000	USD
CY2020Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	3400000000	USD
CY2019Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	3900000000	USD
CY2020Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	3396000000	USD
CY2019Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	3943000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2862000000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	621000000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	755000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1486000000	USD
CY2020Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	2862000000	USD
CY2020Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	621000000	USD
CY2020Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	755000000	USD
CY2020Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	1486000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	1072000000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	621000000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	221000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	230000000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	1072000000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	621000000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	221000000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	230000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	1655000000	USD
CY2019Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	417000000	USD
CY2019Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	504000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	734000000	USD
CY2019Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	1655000000	USD
CY2019Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	417000000	USD
CY2019Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	504000000	USD
CY2019Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	734000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	741000000	USD
CY2019Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	417000000	USD
CY2019Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	97000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	227000000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	741000000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	417000000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	97000000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	227000000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	2919000000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	1673000000	USD
CY2020Q4	fitb	Accounts Receivable Net And Due From Customer Acceptances AccountsReceivableNetAndDueFromCustomerAcceptances	2121000000	USD
CY2019Q4	fitb	Accounts Receivable Net And Due From Customer Acceptances AccountsReceivableNetAndDueFromCustomerAcceptances	2278000000	USD
CY2020Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	2003000000	USD
CY2019Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	1960000000	USD
CY2020Q4	us-gaap	Advances To Affiliate AdvancesToAffiliate	1872000000	USD
CY2019Q4	us-gaap	Advances To Affiliate AdvancesToAffiliate	1729000000	USD
CY2020Q4	fitb	Interest And Fees Receivable InterestAndFeesReceivable	486000000	USD
CY2019Q4	fitb	Interest And Fees Receivable InterestAndFeesReceivable	424000000	USD
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CY2018	fitb	Definedbenefitplansamountrecognizedinperiodicbenefitcostandaccumulatedothercomprehensiveincome Definedbenefitplansamountrecognizedinperiodicbenefitcostandaccumulatedothercomprehensiveincome	-5000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	173000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	175000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0226
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0305
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0410
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0305
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0410
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0347
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0264
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0550
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0600
CY2020Q4	fitb	Defined Benefit Plan Effect25 Basis Point Decrease In Expected Rate Return And Discount Rate DefinedBenefitPlanEffect25BasisPointDecreaseInExpectedRateReturnAndDiscountRate	1000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	2000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	18000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	17000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	18000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	16000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	18000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	66000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2019Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2020	fitb	Other Comprehensive Income Loss Other Adjustments After Tax OtherComprehensiveIncomeLossOtherAdjustmentsAfterTax	-4000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1836000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	427000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1409000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1409000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1696000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1304000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1304000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-246000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-63000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-183000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-183000000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	2051000000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	5676000000	USD
CY2019Q2	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	100000000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	28700000	shares
CY2020Q4	fitb	Share Based Compensation Arrangement By Share Based Payment Award Potential Percentage Dilution To Common Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardPotentialPercentageDilutionToCommonShares	0.08
CY2020Q4	fitb	Share Based Compensation Arrangement By Share Based Payment Award Outstanding Award As Percentage Of Shares Issued ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingAwardAsPercentageOfSharesIssued	0.04
CY2020Q4	fitb	Annual Performance Hurdle AnnualPerformanceHurdle	0.02
CY2020	fitb	Share Based Compensation Arrangement Award Replacement Of Other Than Option Granted Outstanding ShareBasedCompensationArrangementAwardReplacementOfOtherThanOptionGrantedOutstanding	1.65
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	123000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	132000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	127000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	26000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	27000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	27000000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.24
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.32
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.35
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.032
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.033
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.019
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.015
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.026
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.026
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.23
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.29
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0234
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0251
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount For Postvesting Restrictions ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions	0.10
CY2020Q4	fitb	Share Based Compensation Arrangement By Share Based Payment Award Fairvalue Assumtions Exercise Ratios Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairvalueAssumtionsExerciseRatiosMinimum	2.2
CY2020Q4	fitb	Share Based Compensation Arrangement By Share Based Payment Award Fairvalue Assumtions Exercise Ratios Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairvalueAssumtionsExerciseRatiosMaximum	2.8
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3000000	USD
CY2020	fitb	Share Based Compensation Arrangements By Share Based Payment Award Options Assumed In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAssumedInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	2120000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	7000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	1000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	1000000	USD
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	5000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1381000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.15
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.50
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	0	shares
CY2019	fitb	Share Based Compensation Arrangements By Share Based Payment Award Options Assumed In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAssumedInPeriodWeightedAverageExercisePrice	19.34
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	0	shares
CY2018	fitb	Share Based Compensation Arrangements By Share Based Payment Award Options Assumed In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAssumedInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	440000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	17.48
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	660000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	17.36
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.59
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	148000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.99
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	79000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	22.18
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	24.41
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	793000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.81
CY2019	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	562000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1381000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.15
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	725000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	20.34
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1162000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	19.17
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	0
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	793000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.81
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y6M
CY2020Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	725000	shares
CY2020Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	20.34
CY2020	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P3Y2M12D
CY2020	fitb	Private Equity Investment Income PrivateEquityInvestmentIncome	75000000	USD
CY2019	fitb	Private Equity Investment Income PrivateEquityInvestmentIncome	65000000	USD
CY2018	fitb	Private Equity Investment Income PrivateEquityInvestmentIncome	63000000	USD
CY2020	fitb	Income From Termination And Taxable Receivable Agreement Payment IncomeFromTerminationAndTaxableReceivableAgreementPayment	74000000	USD
CY2019	fitb	Income From Termination And Taxable Receivable Agreement Payment IncomeFromTerminationAndTaxableReceivableAgreementPayment	346000000	USD
CY2018	fitb	Income From Termination And Taxable Receivable Agreement Payment IncomeFromTerminationAndTaxableReceivableAgreementPayment	20000000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	63000000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	60000000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	56000000	USD
CY2020	fitb	Fees And Commissions Cards FeesAndCommissionsCards	44000000	USD
CY2019	fitb	Fees And Commissions Cards FeesAndCommissionsCards	58000000	USD
CY2018	fitb	Fees And Commissions Cards FeesAndCommissionsCards	56000000	USD
CY2020	fitb	Gain Loss On Swap Associated With Sale Visa GainLossOnSwapAssociatedWithSaleVisa	-103000000	USD
CY2019	fitb	Gain Loss On Swap Associated With Sale Visa GainLossOnSwapAssociatedWithSaleVisa	-107000000	USD
CY2018	fitb	Gain Loss On Swap Associated With Sale Visa GainLossOnSwapAssociatedWithSaleVisa	-59000000	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-31000000	USD
CY2020	fitb	Loan Fees LoanFees	20000000	USD
CY2019	fitb	Loan Fees LoanFees	23000000	USD
CY2018	fitb	Loan Fees LoanFees	23000000	USD
CY2020	fitb	Banking Center Income BankingCenterIncome	20000000	USD
CY2019	fitb	Banking Center Income BankingCenterIncome	22000000	USD
CY2018	fitb	Banking Center Income BankingCenterIncome	21000000	USD
CY2020	fitb	Insurance Income InsuranceIncome	20000000	USD
CY2019	fitb	Insurance Income InsuranceIncome	19000000	USD
CY2018	fitb	Insurance Income InsuranceIncome	20000000	USD
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-23000000	USD
CY2018	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-43000000	USD
CY2020	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2020	fitb	Federal Deposit Insurance Corporation Premium Expense And Other Taxes FederalDepositInsuranceCorporationPremiumExpenseAndOtherTaxes	118000000	USD
CY2018	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	205000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1000000	USD
CY2020	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	414000000	USD
CY2020	us-gaap	Noninterest Income Other NoninterestIncomeOther	29000000	USD
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	37000000	USD
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	26000000	USD
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	211000000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1064000000	USD
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	803000000	USD
CY2020	us-gaap	Loan Processing Fee LoanProcessingFee	162000000	USD
CY2019	us-gaap	Loan Processing Fee LoanProcessingFee	142000000	USD
CY2018	us-gaap	Loan Processing Fee LoanProcessingFee	112000000	USD
CY2020	us-gaap	Postage Expense PostageExpense	36000000	USD
CY2019	us-gaap	Postage Expense PostageExpense	38000000	USD
CY2019	fitb	Federal Deposit Insurance Corporation Premium Expense And Other Taxes FederalDepositInsuranceCorporationPremiumExpenseAndOtherTaxes	81000000	USD
CY2018	fitb	Federal Deposit Insurance Corporation Premium Expense And Other Taxes FederalDepositInsuranceCorporationPremiumExpenseAndOtherTaxes	119000000	USD
CY2020	fitb	Noninterest Expense Operating Losses NoninterestExpenseOperatingLosses	100000000	USD
CY2019	fitb	Noninterest Expense Operating Losses NoninterestExpenseOperatingLosses	102000000	USD
CY2018	fitb	Noninterest Expense Operating Losses NoninterestExpenseOperatingLosses	61000000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	75000000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	70000000	USD
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	57000000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	49000000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	70000000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	67000000	USD
CY2020	fitb	Amortization Of Intangible Assets Excluding Operating Lease Intangible Assets AmortizationOfIntangibleAssetsExcludingOperatingLeaseIntangibleAssets	48000000	USD
CY2019	fitb	Amortization Of Intangible Assets Excluding Operating Lease Intangible Assets AmortizationOfIntangibleAssetsExcludingOperatingLeaseIntangibleAssets	45000000	USD
CY2018	fitb	Amortization Of Intangible Assets Excluding Operating Lease Intangible Assets AmortizationOfIntangibleAssetsExcludingOperatingLeaseIntangibleAssets	5000000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	710000000	shares
CY2018	us-gaap	Postage Expense PostageExpense	35000000	USD
CY2020	fitb	Donations Expense DonationsExpense	36000000	USD
CY2019	fitb	Donations Expense DonationsExpense	30000000	USD
CY2018	fitb	Donations Expense DonationsExpense	21000000	USD
CY2020	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	27000000	USD
CY2019	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	68000000	USD
CY2018	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	52000000	USD
CY2020	fitb	Recruitment And Education Expense RecruitmentAndEducationExpense	21000000	USD
CY2019	fitb	Recruitment And Education Expense RecruitmentAndEducationExpense	28000000	USD
CY2018	fitb	Recruitment And Education Expense RecruitmentAndEducationExpense	32000000	USD
CY2020	us-gaap	General Insurance Expense GeneralInsuranceExpense	15000000	USD
CY2019	us-gaap	General Insurance Expense GeneralInsuranceExpense	14000000	USD
CY2018	us-gaap	General Insurance Expense GeneralInsuranceExpense	13000000	USD
CY2020	us-gaap	Supplies Expense SuppliesExpense	13000000	USD
CY2019	us-gaap	Supplies Expense SuppliesExpense	14000000	USD
CY2018	us-gaap	Supplies Expense SuppliesExpense	13000000	USD
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2019 Q4 Form 10-K Financial Statement

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$FITB FIFTH THIRD BANCORP Stock $fitb

2019 Q4 Form 10-K Financial Statement

#000003552721000100 Filed on February 26, 2021

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$FITB
FIFTH THIRD BANCORP Stock $fitb