RETIREMENT PLANS (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
In millions	2020		2019		2020		2019
Service cost	$	23	$	16	$	43	$	34
Interest cost	98		110		196		220
Expected return on plan assets	(167)		(158)		(334)		(315)
Actuarial loss	46		49		101		100
Amortization of prior service cost	5		4		10		8
Net periodic pension expense	$	5	$	21	$	16	$	47