Pension and Other Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2011

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Pension and Other Postretirement Benefit Plans

NOTE 12.  PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

	Pension		Other Postretirement
Components of Net Periodic Benefit Expense	2011	2010	2011	2010
Millions
For the Quarter Ended June 30,
Service Cost	$1.9	$1.6	$0.9	$1.2
Interest Cost	6.8	6.5	2.7	2.8
Expected Return on Plan Assets	(8.6)	(8.4)	(2.5)	(2.4)
Amortization of Prior Service Costs	0.1	0.1	(0.5)	-
Amortization of Net Loss	3.0	1.7	2.2	1.2
Amortization of Transition Obligation	-	-	0.1	0.6
Net Periodic Benefit Expense	$3.2	$1.5	$2.9	$3.4
For the Six Months Ended June 30,
Service Cost	$3.8	$3.1	$1.9	$2.4
Interest Cost	13.7	13.1	5.4	5.5
Expected Return on Plan Assets	(17.3)	(16.8)	(4.9)	(4.8)
Amortization of Prior Service Costs	0.2	0.2	(0.9)	-
Amortization of Net Loss	6.0	3.3	4.3	2.4
Amortization of Transition Obligation	-	-	0.1	1.2
Net Periodic Benefit Expense	$6.4	$2.9	$5.9	$6.7

Employer Contributions. For the six months ended June 30, 2011, no contributions were made to our defined benefit pension plan (no contributions were made for the six months ended June 30, 2010). For the six months ended June 30, 2011, $10.9 million was contributed to our other postretirement benefit plan ($2.6 million for the six months ended June 30, 2010). On July 15, 2011, $0.2 million was contributed to our defined benefit pension plan. We expect to make approximately $2 million in contributions to our defined benefit pension plan and an additional $1 million to our other postretirement benefit plan in 2011.

Accounting and disclosure requirements for the Medicare Prescription Drug, Improvement and Modernization Act of 2003 (Act) provides guidance for employers that sponsor postretirement health care plans that provide prescription drug benefits. We provide postretirement health benefits that include prescription drug benefits, which qualify us for the federal subsidy under the Act. For the six months ended June 30, 2011, we received $0.2 million in prescription drug reimbursements.