Huntington Bancshares Incorporated Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)

v3.21.2

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) $ in Millions		6 Months Ended
	Jun. 09, 2021 USD ($)	Jun. 30, 2021 USD ($) Reportable_segment	Jun. 30, 2021 USD ($) numberOfSegments	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Number of Reportable Segments		4	4
Goodwill		$ 5,316	$ 5,316	$ 1,990
TCF Financial Corporation
Business Acquisition [Line Items]
Goodwill	$ 3,326
Value of transaction	7,183
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	157
Core deposit intangible \| TCF Financial Corporation
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	92
Other Intangible assets \| TCF Financial Corporation
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 6

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