Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill [Text Block]

	2015						2014
(millions of dollars)	Engine			Drivetrain			Engine			Drivetrain
Gross goodwill balance, January 1	$	1,362.0		$	345.7		$	1,331.9		$	367.1
Accumulated impairment losses, January 1	(501.8		)	(0.2		)	(501.8		)	(0.2		)
Net goodwill balance, January 1	$	860.2		$	345.5		$	830.1		$	366.9
Goodwill during the year:
Acquisitions*	11.6			584.7			76.9			—
Translation adjustment and other	(35.4		)	(8.9		)	(46.8		)	(21.4		)
Ending balance, December 31	$	836.4		$	921.3		$	860.2		$	345.5

Intangible assets disclosure [Text Block]

	December 31, 2015						December 31, 2014
(millions of dollars)	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Amortized intangible assets:
Patented and unpatented technology	$	128.7	$	42.4	$	86.3	$	89.3	$	39.1	$	50.2
Customer relationships	490.3		116.1		374.2		194.3		115.1		79.2
Miscellaneous	5.6		3.0		2.6		5.8		2.5		3.3
Total amortized intangible assets	624.6		161.5		463.1		289.4		156.7		132.7
In-process R&D	14.6		—		14.6		10.8		—		10.8
Unamortized trade names	66.1		—		66.1		7.6		—		7.6
Total other intangible assets	$	705.3	$	161.5	$	543.8	$	307.8	$	156.7	$	151.1

Intangible assets gross roll forward [Text Block]

(millions of dollars)	2015			2014
Beginning balance, January 1	$	307.8		$	320.3
Acquisitions*	423.8			42.7
Impairment**	—			(10.3		)
Translation adjustment	(26.3		)	(44.9		)
Ending balance, December 31	$	705.3		$	307.8

Accumulated amortization net [Text Block]

(millions of dollars)	2015			2014
Beginning balance, January 1	$	156.7		$	150.8
Amortization	19.2			27.2
Translation adjustment	(14.4		)	(21.3		)
Ending balance, December 31	$	161.5		$	156.7