Employee Retirement Plans

6 Months Ended

Jun. 30, 2017

Employee Retirement Plans [Abstract]

Employee Retirement Plans

9.  Employee Retirement Plans

The following table summarizes the components of net periodic benefit cost for Corning’s defined benefit pension and postretirement health care and life insurance plans (in millions):

	Pension benefits								Postretirement benefits
	Three months ended				Six months ended				Three months ended				Six months ended
	June 30,				June 30,				June 30,				June 30,
	2017		2016		2017		2016		2017		2016		2017		2016
Service cost	$	23	$	21	$	47	$	43	$	2	$	2	$	5	$	4
Interest cost		31		31		62		62		6		6		13		13
Expected return on plan assets		(44)		(41)		(87)		(83)
Amortization of prior service    cost (credit)		2		2		3		3				(1)		(1)		(2)
Recognition of actuarial loss		15		28		15		35
Total pension and postretirement    benefit expense	$	27	$	41	$	40	$	60	$	8	$	7	$	17	$	15