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v3.24.0.1

Segment Information (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) segments | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segments |  | 3 |  |
Revenues |  | $ 26,948.9 | $ 26,985.0 | $ 25,844.0
Floorplan interest expense |  | 144.7 | 41.4 | 25.7
Depreciation and amortization |  | 220.5 | 200.3 | 193.3
Segment assets |  | 11,980.0 | 10,059.7 | 8,943.6
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | 1,507.2 | 1,983.1 | 1,877.1
Segment, Expenditure, Addition to Long-Lived Assets | [1] | 416.0 | 336.2 | 231.9
Other interest expense |  | (181.4) | (134.9) | (93.0)
Other income, net |  | 24.4 | (14.7) | 24.3
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES |  | 1,350.2 | 1,833.5 | 1,808.4
AN Reportable Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues |  | 25,720.5 | 25,955.9 | 24,988.3
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | 1,886.9 | 2,268.6 | 2,147.9
AN Reportable Segment, Domestic [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues |  | 7,573.2 | 7,987.5 | 7,959.9
Floorplan interest expense |  | 57.3 | 14.4 | 7.9
Depreciation and amortization |  | 43.6 | 39.1 | 39.3
Segment assets |  | 2,507.7 | 1,974.3 | 1,758.5
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | 415.4 | 565.3 | 595.8
Segment, Expenditure, Addition to Long-Lived Assets | [1] | 102.0 | 32.8 | 15.5
AN Reportable Segment, Import [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues |  | 7,880.9 | 7,690.3 | 7,798.5
Floorplan interest expense |  | 21.5 | 4.8 | 5.1
Depreciation and amortization |  | 39.2 | 35.6 | 33.9
Segment assets |  | 2,034.6 | 1,555.6 | 1,424.2
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | 635.0 | 734.2 | 714.7
Segment, Expenditure, Addition to Long-Lived Assets | [1] | 106.6 | 70.1 | 27.1
AN Reportable Segment, Premium Luxury [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues |  | 10,266.4 | 10,278.1 | 9,229.9
Floorplan interest expense |  | 53.9 | 15.0 | 8.8
Depreciation and amortization |  | 76.9 | 74.9 | 64.8
Segment assets |  | 3,506.8 | 2,996.8 | 2,668.6
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | 836.5 | 969.1 | 837.4
Segment, Expenditure, Addition to Long-Lived Assets | [1] | 69.4 | 126.5 | 80.0
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | [2] | 1,228.4 | 1,029.1 | 855.7
Floorplan interest expense |  | 12.0 | 7.2 | 3.9
Depreciation and amortization |  | 60.8 | 50.7 | 55.3
Segment assets |  | 3,930.9 | 3,533.0 | 3,092.3
Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] |  |  |  |
Segment income (loss) |  | (379.7) | (285.5) | (270.8)
Segment, Expenditure, Addition to Long-Lived Assets | [1] | $ 138.0 | $ 106.8 | $ 109.3
[1] | (2) Includes accrued construction in progress and excludes property associated with leases entered during the year.
[2] | (1) “Corporate and other” is comprised of our other businesses, including AutoNation USA used vehicle stores, collision centers, parts distribution centers, auction operations, and AutoNation Mobile Service.

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