Pension and Postretirement Health Care (Tables)

3 Months Ended

Mar. 31, 2015

Components of Company's Net Periodic Benefit Cost

The following tables set forth the net periodic pension and postretirement benefit expense for Northern Trust’s U.S. and non-U.S. pension plans, supplemental pension plan, and postretirement health care plan for the three months ended March 31, 2015, and 2014.

Table 49: Net Periodic Pension Expense (Benefit)

Net Periodic Pension Expense U.S. Plan	Three Months Ended March 31,
(In Millions)	2015			2014
Service Cost	$	9.5		$	8.2
Interest Cost		11.2			11.1
Expected Return on Plan Assets		(24.1	)		(24.4	)
Amortization
Net Actuarial Loss		7.4			5.4
Prior Service Cost		(0.1	)		(0.1	)
Net Periodic Pension Expense	$	3.9		$	0.2

Net Periodic Pension Expense (Benefit) Non U.S. Plans	Three Months Ended March 31,
(In Millions)	2015			2014
Interest Cost	$	1.4		$	1.7
Expected Return on Plan Assets		(1.5	)		(1.7	)
Net Actuarial Loss Amortization		0.4			(0.4	)
Net Periodic Pension Expense (Benefit)	$	0.3		$	(0.4	)

Net Periodic Pension Expense Supplemental Plan	Three Months Ended March 31,
(In Millions)	2015		2014
Service Cost	$	0.9	$	0.8
Interest Cost		1.3		1.2
Amortization
Net Actuarial Loss		1.8		1.5
Prior Service Cost		—		0.1
Net Periodic Pension Expense	$	4.0	$	3.6

Net Periodic Postretirement Expense Postretirement Health Care Plan	Three Months Ended March 31,
(In Millions)	2015		2014
Interest Cost		0.3		0.4
Amortization
Net Actuarial (Gain)		—		(0.1	)
Net Periodic Postretirement Expense	$	0.3	$	0.3