BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2023

BENEFIT PLANS

Schedule of net periodic benefit cost

	Pension Benefits				Post-retirement Benefits
	Three Months Ended				Three Months Ended
	March 31,				March 31,
(000’s omitted)	2023		2022		2023		2022
Service cost	$	1,108	$	1,240	$	0	$	0
Interest cost		1,890		1,334		23		11
Expected return on plan assets		(4,020)		(4,756)		0		0
Amortization of unrecognized net (gain) loss		(555)		211		6		9
Amortization of prior service cost		205		154		(45)		(45)
Net periodic benefit	$	(1,372)	$	(1,817)	$	(16)	$	(25)