RETIREMENT PLANS (Tables)

6 Months Ended

Jun. 30, 2019

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	2019			2018			2019			2018
Service cost	$	16		$	41		$	34		$	79
Interest cost	110			120			220			238
Expected return on plan assets	(158		)	(200		)	(315		)	(400		)
Actuarial loss	49			108			100			190
Amortization of prior service cost	4			4			8			8
Net periodic pension expense	$	21		$	73		$	47		$	115