Other Comprehensive Income

12 Months Ended

Dec. 31, 2012

Statement of Other Comprehensive Income [Abstract]

Other Comprehensive Income Disclosure

Other Comprehensive Income (Loss)

The following table presents the tax effect allocated to each component of other comprehensive income (loss) for each period presented:

	Before-Tax			Income Tax			Net-of-Tax
	Amount			(Expense) Benefit			Amount
2012
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	87.8		$	(33.5	)	$	54.3
Reclassification adjustments:
Less: amortization of net actuarial loss	3.1			(1.1		)	2.0
Less: amortization of prior service cost	4.2			(1.7		)	2.5
Other comprehensive income (loss) relating to defined benefit pension plan and VEBAs	95.1			(36.3		)	58.8
Unrealized gain on available for sale securities	0.6			(0.2		)	0.4
Foreign currency translation adjustment	(0.2		)	—			(0.2		)
Other comprehensive income	$	95.5		$	(36.5	)	$	59.0
2011
Defined benefit pension plan and VEBAs:
Net actuarial loss arising during the period	$	(110.6	)	$	42.2		$	(68.4	)
Reclassification adjustments:
Less: amortization of net actuarial gain	0.6			(0.2		)	0.4
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Other comprehensive income (loss) relating to defined benefit pension plan and VEBAs	(105.8		)	40.4			(65.4		)
Unrealized loss on available for sale securities	(0.1		)	—			(0.1		)
Foreign currency translation adjustment	0.2			—			0.2
Other comprehensive loss	$	(105.7	)	$	40.4		$	(65.3	)
2010
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	25.5		$	(9.7	)	$	15.8
Reclassification adjustments
Less: amortization of net actuarial gain	0.7			(0.2		)	0.5
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Other comprehensive income (loss) relating to defined benefit pension plan and VEBAs	30.4			(11.5		)	18.9
Unrealized gain on available for sale securities	0.1			—			0.1
Foreign currency translation adjustment	(0.5		)	—			(0.5		)
Other comprehensive income	$	30.0		$	(11.5	)	$	18.5