RETIREMENT PLANS (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Net Periodic Pension Expense for Qualified and Nonqualified U.S. Defined Benefit Plans [Table Text Block]

Net periodic pension expense for our qualified and nonqualified U.S. defined benefit plans comprised the following: 

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions	2020		2019		2020		2019
Service cost	$	21	$	17	$	64	$	51
Interest cost	98		110		294		330
Expected return on plan assets	(167)		(158)		(501)		(473)
Actuarial loss	51		50		152		150
Amortization of prior service cost	5		4		15		12
Net periodic pension expense	$	8	$	23	$	24	$	70