Benefit Plans (Tables)

6 Months Ended

Jun. 29, 2014

Benefit Plans [Abstract]

Components of net periodic benefit cost

Components of Net Periodic Benefit Cost

	Pension Benefits
	Three Months Ended						Six Months Ended
	June 29,			June 30,			June 29,			June 30,
	2014			2013			2014			2013
	(millions of dollars)
Service cost	$	2.2		$	2.3		$	4.2		$	4.6
Interest cost		3.4			2.8			6.5			5.6
Expected return on plan assets		(4.6	)		(3.7	)		(8.9	)		(7.4	)
Amortization:
Prior service cost		0.3			0.3			0.6			0.6
Recognized net actuarial loss		1.7			3.4			3.4			6.8
Net periodic benefit cost	$	3.0		$	5.1		$	5.8		$	10.2

	Other Benefits
	Three Months Ended						Six Months Ended
	June 29,			June 30,			June 29,			June 30,
	2014			2013			2014			2013
	(millions of dollars)
Service cost	$	0.1		$	0.2		$	0.2		$	0.3
Interest cost		0.1			0.1			0.2			0.2
Amortization:
Prior service cost		(0.8	)		(0.8	)		(1.6	)		(1.6	)
Recognized net actuarial (gain)/loss		(0.1	)		-			(0.1	)		-
Net periodic benefit cost	$	(0.7	)	$	(0.5	)	$	(1.3	)	$	(1.1	)