CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Total revenues	$ 7,447.8	$ 6,920.7	$ 22,255.3	$ 20,803.0
Cost of sales:
Total cost of sales	6,227.4	5,733.8	18,509.6	17,147.4
Gross profit	1,220.4	1,186.9	3,745.7	3,655.6
Selling, general, and administrative expenses	853.5	792.7	2,556.5	2,408.2
Depreciation	35.4	31.5	103.4	95.1
Operating income	331.5	362.7	1,085.8	1,152.3
Floor plan interest expense	(35.5)	(13.8)	(94.2)	(30.3)
Other interest expense	(24.5)	(17.9)	(69.5)	(51.4)
Equity in earnings of affiliates	85.0	136.2	241.6	393.8
Income before income taxes	356.5	467.2	1,163.7	1,464.4
Income taxes	(92.1)	(125.7)	(297.1)	(377.5)
Net income	264.4	341.5	866.6	1,086.9
Less: Income attributable to non-controlling interests	1.0	1.4	4.1	4.9
Net income attributable to Penske Automotive Group common stockholders	$ 263.4	$ 340.1	$ 862.5	$ 1,082.0
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.92	$ 4.61	$ 12.64	$ 14.32
Shares used in determining basic earnings per share (in shares)	67,252,265	73,739,316	68,205,621	75,575,189
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.92	$ 4.61	$ 12.64	$ 14.31
Shares used in determining diluted earnings per share (in shares)	67,267,230	73,764,715	68,220,586	75,600,588
Amounts attributable to Penske Automotive Group common stockholders:
Net income	$ 264.4	$ 341.5	$ 866.6	$ 1,086.9
Less: Income attributable to non-controlling interests	1.0	1.4	4.1	4.9
Net income attributable to Penske Automotive Group common stockholders	$ 263.4	$ 340.1	$ 862.5	$ 1,082.0
Cash dividends per share (in dollars per share)	$ 0.72	$ 0.53	$ 1.99	$ 1.50
Retail automotive dealership
Revenue:
Total revenues	$ 6,325.4	$ 5,757.8	$ 19,031.2	$ 17,784.3
Cost of sales:
Total cost of sales	5,300.1	4,750.9	15,857.4	14,666.7
Retail commercial truck dealership
Revenue:
Total revenues	964.7	1,019.5	2,779.5	2,580.5
Cost of sales:
Total cost of sales	809.3	879.8	2,330.3	2,163.6
Commercial vehicle distribution and other
Revenue:
Total revenues	157.7	143.4	444.6	438.2
Cost of sales:
Total cost of sales	$ 118.0	$ 103.1	$ 321.9	$ 317.1