CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities:
Net income	$ 346.4	$ 330.4	$ 290.1
Adjustments to reconcile net income to net cash from continuing operating activities:
Depreciation	89.7	78.0	70.2
Gain on investment			(16.0)
Earnings of equity method investments	(50.0)	(28.0)	(28.8)
Loss from discontinued operations, net of tax	1.0	3.5	14.7
Deferred income taxes	162.2	44.6	50.5
Changes in operating assets and liabilities:
Accounts receivable	(92.5)	(23.5)	(41.2)
Inventories	130.4	(428.4)	(120.6)
Floor plan notes payable	(162.8)	360.8	140.7
Accounts payable and accrued expenses	(17.8)	66.0	19.6
Other	(41.1)	(11.9)	(19.9)
Net cash provided by continuing operating activities	365.5	391.5	359.3
Investing Activities:
Purchase of equipment and improvements	(203.1)	(199.5)	(176.1)
Acquisition of additional ownership interest in Penske Truck Leasing	(498.5)
Acquisitions net, including repayment of sellers’ floor plan notes payable of $62.2, $60.3 and $117.8, respectively	(140.8)	(156.9)	(355.0)
Other	5.7	4.7	(22.6)
Net cash used in continuing investing activities	(836.7)	(351.7)	(553.7)
Financing Activities:
Proceeds from borrowings under U.S. credit agreement revolving credit line	1,476.5	1,420.4	1,272.6
Repayments under U.S. credit agreement revolving credit line	(1,396.5)	(1,260.4)	(1,362.6)
Repayment of U.S. credit agreement term loan		(88.0)	(10.0)
Repayment of U.S. commercial truck capital loan		(60.5)
Net borrowings (repayments) of other long-term debt	42.9	(73.6)	28.7
Net borrowings of floor plan notes payable — non-trade	101.0	154.2	26.1
Payment of debt issuance costs	(6.7)	(1.8)	(4.4)
Repurchases of common stock	(173.6)	(48.9)	(15.5)
Dividends	(95.1)	(84.8)	(70.5)
Other	(9.7)	(5.9)	0.3
Net cash provided by (used in) continuing financing activities	438.8	(49.3)	164.7
Discontinued operations:
Net cash provided by (used in) discontinued operating activities	1.6	(5.5)	8.6
Net cash provided by discontinued investing activities	1.7	129.6	19.8
Net cash used in discontinued financing activities	(0.2)	(87.1)	(11.4)
Net cash provided by discontinued operations	3.1	37.0	17.0
Effect of exchange rate changes on cash and cash equivalents	(9.1)	(1.4)	(1.3)
Net change in cash and cash equivalents	(38.4)	26.1	(14.0)
Cash and cash equivalents, beginning of period	62.4	36.3	50.3
Cash and cash equivalents, end of period	24.0	62.4	36.3
Cash paid for:
Interest	129.8	110.1	98.4
Income taxes	48.6	114.9	114.3
Seller financed/assumed debt		$ 2.6	136.4
5.50% senior subordinated notes due 2026
Financing Activities:
Issuance of senior subordinated notes	$ 500.0
5.375% Senior Subordinated Notes Due 2024
Financing Activities:
Issuance of senior subordinated notes			$ 300.0