Store Divestitures	12 Months Ended
Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Store Divestitures	STORE DIVESTITURESDuring 2020, we divested one Premium Luxury store and two collision centers. We also terminated one Domestic franchise. During 2019, we divested three Domestic stores, five Import stores, and two collision centers. During 2018, we divested eight Domestic stores, seven Import stores, two Premium Luxury stores, and one collision center.We recognized net gains related to store divestitures of $2.5 million in 2020, $29.7 million in 2019, and $40.3 million in 2018. The net gains on these divestitures are included in Other (Income) Expense, Net (within Operating Income) in our Consolidated Statements of Income. The financial condition and results of operations of these businesses were not material to our consolidated financial statements.

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2122178

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