Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Segment Reporting Information by Segment

	Three Months Ended September 30						Nine Months Ended September 30
	2015			2014			2015			2014
Net sales and revenues:
Truck	$	3,969.1		$	4,000.1		$	12,178.3		$	11,168.1
Less intersegment		(224.4	)		(189.5	)		(681.1	)		(573.3	)
External customers		3,744.7			3,810.6			11,497.2			10,594.8
Parts		789.1			797.0			2,341.9			2,324.3
Less intersegment		(11.1	)		(12.8	)		(34.7	)		(35.5	)
External customers		778.0			784.2			2,307.2			2,288.8
Other		23.5			27.7			75.9			92.1
		4,546.2			4,622.5			13,880.3			12,975.7
Financial Services		301.0			305.9			879.5			902.2
	$	4,847.2		$	4,928.4		$	14,759.8		$	13,877.9
Income (loss) before income taxes:
Truck	$	388.3		$	330.0		$	1,147.5		$	801.9
Parts		145.4			127.9			430.0			366.7
Other		(8.3	)		(8.1	)		(28.4	)		(19.8	)
		525.4			449.8			1,549.1			1,148.8
Financial Services		92.9			96.9			272.7			274.1
Investment income		6.2			5.7			16.6			17.0
	$	624.5		$	552.4		$	1,838.4		$	1,439.9
Depreciation and amortization:
Truck	$	101.9		$	103.5		$	300.8		$	303.7
Parts		1.5			1.5			4.6			4.2
Other		3.8			3.1			10.9			8.4
		107.2			108.1			316.3			316.3
Financial Services		123.7			122.0			363.0			361.3
	$	230.9		$	230.1		$	679.3		$	677.6