XML 93 R38.htm IDEA: XBRL DOCUMENT

Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Postretirement Benefit Plans [Abstract]

Net periodic benefit cost of pension plans and other employee related benefit plans


		2012												2011
Three Months Ended June 30		Pension				Other Benefits				Total				Pension				Other Benefits				Total
Net periodic benefit cost
Service cost		$	1.6			$	0.5			$	2.1			$	1.7			$	0.5			$	2.2
Interest cost			4.1				2.2				6.3				4.0				2.3				6.3
Expected return on plan assets			(5.0	)			(0.2	)			(5.2	)			(4.7	)			(0.1	)			(4.8	)
Amortization of prior service cost			0.2				—				0.2				0.3				—				0.3
Amortization of net actuarial loss			1.6				1.1				2.7				0.9				0.6				1.5
Net periodic benefit cost (income)		$	2.5			$	3.6			$	6.1			$	2.2			$	3.3			$	5.5


		2012												2011
Six Months Ended June 30		Pension				Other Benefits				Total				Pension				Other Benefits				Total
Net periodic benefit cost
Service cost		$	2.9			$	1.1			$	4.0			$	3.3			$	1.1			$	4.4
Interest cost			7.7				4.5				12.2				8.0				4.7				12.7
Expected return on plan assets			(9.1	)			(0.3	)			(9.4	)			(9.4	)			(0.3	)			(9.7	)
Amortization of prior service cost (benefit)			0.5				(0.1	)			0.4				0.6				(0.1	)			0.5
Amortization of net actuarial loss			3.1				2.1				5.2				1.7				1.2				2.9
Net periodic benefit cost (income)		$	5.1			$	7.3			$	12.4			$	4.2			$	6.6			$	10.8