Segment Information (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Segment Reporting Information by Segment

	Three Months Ended						Nine Months Ended
	September 30						September 30
		2017			2016			2017			2016
Net sales and revenues:
Truck	$	4,065.6		$	3,429.0		$	11,131.8		$	10,499.4
Less intersegment		(198.2	)		(258.3	)		(580.7	)		(717.0	)
External customers		3,867.4			3,170.7			10,551.1			9,782.4
Parts		854.4			777.2			2,488.7			2,276.0
Less intersegment		(14.4	)		(12.4	)		(38.9	)		(35.3	)
External customers		840.0			764.8			2,449.8			2,240.7
Other		24.1			17.7			64.2			56.5
		4,731.5			3,953.2			13,065.1			12,079.6
Financial Services		328.2			296.2			936.7			883.0
	$	5,059.7		$	4,249.4		$	14,001.8		$	12,962.6
Income (loss) before income taxes:
Truck	$	357.4		$	284.9		$	922.8		$	918.4
Parts		152.9			138.3			457.0			406.3
Other*		(8.7	)		(7.8	)		(28.1	)		(862.4	)
		501.6			415.4			1,351.7			462.3
Financial Services		71.2			71.0			191.5			228.6
Investment income		9.0			8.5			25.8			20.6
	$	581.8		$	494.9		$	1,569.0		$	711.5
Depreciation and amortization:
Truck	$	122.4		$	107.6		$	340.5		$	329.5
Parts		2.4			1.9			6.3			5.4
Other		5.7			3.9			13.7			11.7
		130.5			113.4			360.5			346.6
Financial Services		155.6			136.8			453.8			399.0
	$	286.1		$	250.2		$	814.3		$	745.6

* Other includes the $833.0 European Commission charge in the first half of 2016 (see Note L).