Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Segment Reporting Information by Segment

	Three Months Ended						Nine Months Ended
	September 30						September 30
		2019			2018			2019			2018
Net sales and revenues:
Truck	$	5,102.6		$	4,677.8		$	15,638.5		$	13,892.5
Less intersegment		(125.2	)		(248.4	)		(341.9	)		(642.3	)
External customers		4,977.4			4,429.4			15,296.6			13,250.2
Parts		1,012.8			974.8			3,066.6			2,911.4
Less intersegment		(11.9	)		(14.7	)		(35.6	)		(43.4	)
External customers		1,000.9			960.1			3,031.0			2,868.0
Other		25.9			27.4			81.2			87.7
		6,004.2			5,416.9			18,408.8			16,205.9
Financial Services		362.8			339.9			1,073.7			1,010.1
	$	6,367.0		$	5,756.8		$	19,482.5		$	17,216.0
Income before income taxes:
Truck	$	481.5		$	391.0		$	1,509.2		$	1,220.2
Parts		207.4			188.5			625.6			574.8
Other		1.1			(5.9	)		(16.4	)		3.1
		690.0			573.6			2,118.4			1,798.1
Financial Services		66.5			78.8			230.8			218.7
Investment income		21.1			16.4			62.2			41.0
	$	777.6		$	668.8		$	2,411.4		$	2,057.8
Depreciation and amortization:
Truck	$	95.8		$	93.6		$	290.5		$	306.9
Parts		2.5			2.3			7.8			6.7
Other		4.1			4.5			12.7			13.4
		102.4			100.4			311.0			327.0
Financial Services		169.7			152.2			481.4			467.4
	$	272.1		$	252.6		$	792.4		$	794.4