Debt Instrument, Redemption Period Prior To Maturity Date

No definition available.

Name:	fitb_DebtInstrumentRedemptionPeriodPriorToMaturityDate
Namespace Prefix:	fitb_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Long-Term Debt - Senior Notes (Details) - Parent Company - Senior Notes - USD ($)	Nov. 01, 2021	May 05, 2020	Oct. 28, 2019	Jan. 25, 2019	Mar. 14, 2018	Jun. 15, 2017	Mar. 07, 2012	Dec. 31, 2021
Fixed Rate 3.50% Due 2022
Debt Instrument
Principal amount							$ 500,000,000
Interest rate (as a percent)							3.50%	3.50%
Redemption period prior to maturity date							30 days
Redemption price (as a percent)							100.00%
Fixed Rate 2.60% Notes Due 2022
Debt Instrument
Principal amount						$ 700,000,000
Interest rate (as a percent)						2.60%		2.60%
Redemption period prior to maturity date						30 days
Redemption price (as a percent)						100.00%
Fixed Rate 3.95% Notes Due 2028
Debt Instrument
Principal amount					$ 650,000,000
Interest rate (as a percent)					3.95%			3.95%
Redemption period prior to maturity date					30 days
Redemption price (as a percent)					100.00%
Fixed Rate 3.65% Notes Due 2024
Debt Instrument
Principal amount				$ 1,500,000,000
Interest rate (as a percent)				3.65%
Redemption period prior to maturity date				30 days
Redemption price (as a percent)				100.00%
Fixed Rate 2.375% Notes Due 2025
Debt Instrument
Principal amount			$ 750,000,000
Interest rate (as a percent)			2.375%					2.375%
Redemption period prior to maturity date			30 days
Redemption price (as a percent)			100.00%
Fixed Rate 2.375% Notes Due 2025 \| U.S. Treasury Rate
Debt Instrument
Basis spread on variable rate (as a percent)			0.15%
Fixed Rate 1.625% and 2.55% Notes
Debt Instrument
Principal amount		$ 1,250,000,000
Fixed Rate 1.625% Notes Due 2023
Debt Instrument
Principal amount		$ 500,000,000
Interest rate (as a percent)		1.625%						1.625%
Redemption price (as a percent)		100.00%
Debt term		3 years
Fixed Rate 1.625% Notes Due 2023 \| U.S. Treasury Rate
Debt Instrument
Basis spread on variable rate (as a percent)		0.25%
Fixed Rate 2.55% Notes Due 2027
Debt Instrument
Principal amount		$ 750,000,000
Interest rate (as a percent)		2.55%						2.55%
Redemption price (as a percent)		100.00%
Debt term		7 years
Fixed Rate 2.55% Notes Due 2027 \| U.S. Treasury Rate
Debt Instrument
Basis spread on variable rate (as a percent)		0.35%
Fixed Rate/Floating Rate Senior Notes Due November 1, 2027
Debt Instrument
Principal amount	$ 500,000,000
Redemption period prior to maturity date	30 days
Interest rate paid (as a percent)								0.67%
Fixed Rate/Floating Rate Senior Notes Due November 1, 2027 \| Debt Instrument, Redemption, Period One
Debt Instrument
Redemption price (as a percent)	100.00%
Fixed Rate/Floating Rate Senior Notes Due November 1, 2027 \| Debt Instrument, Redemption, Period Two
Debt Instrument
Redemption price (as a percent)	100.00%
Fixed Rate 1.707% Senior Notes
Debt Instrument
Interest rate (as a percent)	1.707%
Senior Notes with Compounded SOFR Interest Rate \| SOFR
Debt Instrument
Basis spread on variable rate (as a percent)	0.685%
Senior Notes with Floating Interest Rate \| LIBOR
Debt Instrument
Basis spread on variable rate (as a percent)	0.57%