Stock-Based Compensation	6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION In March 2026, our Board’s Compensation Committee approved a maximum annual grant to employees of 0.3 million RSUs under the 2017 Employee Equity and Incentive Plan (the “2017 Plan”) including time-based RSUs, performance-based RSUs, and market-based RSUs. In January 2026, our Board, upon the recommendation of its Compensation Committee approved the AutoNation, Inc. 2026 Employee Equity and Incentive Plan (the “2026 Plan”), subject to stockholder approval at our 2026 Annual Meeting of Stockholders (the “2026 Annual Meeting”). Our stockholders approved the 2026 Plan at the 2026 Annual Meeting held on April 28, 2026. Following stockholder approval of the 2026 Plan, no additional awards may be granted under the 2017 Plan. The 2026 Plan provides for the grant of time-based and performance-based RSUs and restricted stock, stock options, stock appreciation rights, and other stock-based and cash-based awards to employees. As of June 30, 2026, a maximum of 2.2 million shares may be issued under the 2026 Plan.

Stock-Based Compensation

6 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION

In March 2026, our Board’s Compensation Committee approved a maximum annual grant to employees of 0.3 million RSUs under the 2017 Employee Equity and Incentive Plan (the “2017 Plan”) including time-based RSUs, performance-based RSUs, and market-based RSUs.

In January 2026, our Board, upon the recommendation of its Compensation Committee approved the AutoNation, Inc. 2026 Employee Equity and Incentive Plan (the “2026 Plan”), subject to stockholder approval at our 2026 Annual Meeting of Stockholders (the “2026 Annual Meeting”). Our stockholders approved the 2026 Plan at the 2026 Annual Meeting held on April 28, 2026. Following stockholder approval of the 2026 Plan, no additional awards may be granted under the 2017 Plan.

The 2026 Plan provides for the grant of time-based and performance-based RSUs and restricted stock, stock options, stock appreciation rights, and other stock-based and cash-based awards to employees. As of June 30, 2026, a maximum of 2.2 million shares may be issued under the 2026 Plan.