CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenues	$ 6,906.9	$ 6,987.5	$ 13,882.3	$ 12,761.3
Cost of sales:
Total cost of sales	5,669.9	5,804.8	11,413.6	10,665.4
Gross profit	1,237.0	1,182.7	2,468.7	2,095.9
Selling, general and administrative expenses	817.7	749.8	1,615.5	1,414.1
Depreciation	31.7	30.2	63.6	59.5
Operating income	387.6	402.7	789.6	622.3
Floor plan interest expense	(9.0)	(7.9)	(16.5)	(17.4)
Other interest expense	(17.0)	(19.7)	(33.5)	(37.6)
Debt redemption costs	0.0	(17.0)	0.0	(17.0)
Equity in earnings of affiliates	138.0	105.6	257.6	161.0
Income from continuing operations before income taxes	499.6	463.7	997.2	711.3
Income taxes	(123.7)	(123.4)	(251.8)	(187.9)
Income from continuing operations	375.9	340.3	745.4	523.4
Income from discontinued operations, net of tax	0.0	0.1	0.0	0.1
Net income	375.9	340.4	745.4	523.5
Less: Income attributable to non-controlling interests	1.9	1.5	3.5	2.1
Net income attributable to Penske Automotive Group common stockholders	$ 374.0	$ 338.9	$ 741.9	$ 521.4
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 4.93	$ 4.20	$ 9.70	$ 6.46
Discontinued operations (in dollars per share)	0	0	0	0
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 4.93	$ 4.20	$ 9.70	$ 6.46
Shares used in determining basic earnings per share (in shares)	75,793,239	80,691,996	76,501,402	80,649,824
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 4.93	$ 4.20	$ 9.70	$ 6.46
Discontinued operations (in dollars per share)	0	0	0	0
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 4.93	$ 4.20	$ 9.70	$ 6.46
Shares used in determining diluted earnings per share (in shares)	75,817,119	80,726,438	76,525,282	80,684,266
Amounts attributable to Penske Automotive Group common stockholders:
Income from continuing operations	$ 375.9	$ 340.3	$ 745.4	$ 523.4
Less: Income attributable to non-controlling interests	1.9	1.5	3.5	2.1
Income from continuing operations, net of tax	374.0	338.8	741.9	521.3
Income from discontinued operations, net of tax	0.0	0.1	0.0	0.1
Net income attributable to Penske Automotive Group common stockholders	$ 374.0	$ 338.9	$ 741.9	$ 521.4
Cash dividends per share (in dollars per share)	$ 0.50	$ 0.44	$ 0.97	$ 0.87
Retail automotive dealership
Revenue:
Total revenues	$ 5,997.3	$ 6,197.6	$ 12,026.5	$ 11,404.5
Cost of sales:
Total cost of sales	4,937.3	5,157.2	9,915.8	9,564.2
Retail commercial truck dealership
Revenue:
Total revenues	768.7	625.3	1,561.0	1,060.0
Cost of sales:
Total cost of sales	632.7	522.6	1,283.8	877.3
Commercial vehicle distribution and other
Revenue:
Total revenues	140.9	164.6	294.8	296.8
Cost of sales:
Total cost of sales	$ 99.9	$ 125.0	$ 214.0	$ 223.9