PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The net periodic benefit cost of defined benefit pension plans includes:

	Three Months Ended March 31,
Dollars in Millions	2020			2019
Service cost – benefits earned during the year	$	12		$	7
Interest cost on projected benefit obligation	8			44
Expected return on plan assets	(23		)	(64		)
Amortization of prior service credits	(1		)	(1		)
Amortization of net actuarial loss	11			18
Curtailments and settlements	2			49
Net periodic pension benefit cost	$	9		$	53