Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of (Income) Charges Related to Benefit Plans

The following table presents the components of net periodic postretirement benefit cost (income) for the VEBAs and charges relating to all other employee benefit plans for the periods presented (in millions of dollars):

	Quarter Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
VEBAs:
Service cost1	$	—		$	0.5		$	—		$	1.1
Interest cost	0.7			4.2			1.4			8.3
Expected return on plan assets	(1.1		)	(12.8		)	(2.2		)	(25.6		)
Amortization of prior service cost	0.8			2.6			1.5			5.4
Amortization of net actuarial loss (gain)	0.2			(0.6		)	0.5			(0.9		)
Total net periodic postretirement benefit cost (income) relating to VEBAs	0.6			(6.1		)	1.2			(11.7		)
Loss on removal of Union VEBA net assets2	1.6			—			493.8			—
Total VEBAs	2.2			(6.1		)	495.0			(11.7		)
Other employee benefit plans:
Deferred compensation plan	0.1			0.4			0.5			0.6
Defined contribution plans	1.7			1.5			5.7			5.5
Multiemployer pension plans	0.9			0.9			1.8			1.8
Total other employee benefit plans	$	2.7		$	2.8		$	8.0		$	7.9
Total	$	4.9		$	(3.3	)	$	503.0		$	(3.8	)

Allocation of (Income) Charges Relating to Benefit Plans by Segment

(in millions of dollars – see Note 11):

	Quarter Ended					Six Months Ended
	June 30,					June 30,
	2015		2014			2015		2014
Fabricated Products	$	2.4	$	2.3		$	7.0	$	6.9
All Other	2.5		(5.6		)	496.0		(10.7		)
Total	$	4.9	$	(3.3	)	$	503.0	$	(3.8	)