Benefit Plans (Tables)

3 Months Ended

Apr. 03, 2016

Benefit Plans [Abstract]

Components of net periodic benefit cost

Components of Net Periodic Benefit Cost

	Pension Benefits
	Three Months Ended
	Apr. 3, 2016			Mar. 29, 2015
	(millions of dollars)
Service cost	$	2.3		$	2.6
Interest cost		3.4			3.9
Expected return on plan assets		(4.6	)		(5.1	)
Amortization:
Prior service cost		0.2			0.3
Recognized net actuarial loss		2.6			2.8
Net periodic benefit cost	$	3.9		$	4.5

	Other Benefits
	Three Months Ended
	Apr. 3, 2016			Mar. 29, 2015
	(millions of dollars)
Service cost	$	0.1		$	0.1
Interest cost		0.1			0.1
Amortization:
Prior service cost		(0.8	)		(0.8	)
Recognized net actuarial (gain)/loss					-
Net periodic benefit cost	$	(0.6	)	$	(0.6	)