Share-Based Compensation Plans

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

The Northern Trust Corporation 2017 Long-Term Incentive Plan provides for the grant of nonqualified and incentive stock options; tandem and free-standing stock appreciation rights; stock awards in the form of restricted stock, restricted stock units and other stock awards; and performance awards.

Beginning with the grants made on February 21, 2017 under the Corporation’s prior equity incentive plan, restricted stock unit and performance stock unit grants continue to vest in accordance with the original terms of the award if the applicable employee retires after satisfying applicable age and service requirements. For all applicable periods, stock option grants continue to vest in accordance with the original terms of the award if the applicable employee retires after satisfying applicable age and service requirements.

Total compensation expense for share-based payment arrangements and the associated tax impacts were as follows for the three and nine months ended September 30, 2018 and 2017.

Table 62: Total Compensation Expense for Share-Based Payment Arrangements



	Three Months Ended September 30,				Nine Months Ended September 30,
(In Millions)	2018		2017		2018		2017
Restricted Stock Unit Awards	$	15.5	$	15.8	$	80.3	$	72.6
Stock Options	0.5		0.9		2.0		8.2
Performance Stock Units	3.5		4.9		26.9		25.4
Total Share-Based Compensation Expense	19.5		21.6		109.2		106.2
Tax Benefits Recognized	$	4.9	$	8.5	$	27.1	$	40.4