PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 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 June 30,				Six Months Ended June 30,
Dollars in Millions	2020		2019		2020		2019
Service cost – benefits earned during the year	$	12	$	5	$	24	$	12
Interest cost on projected benefit obligation	11		37		19		81
Expected return on plan assets	(24)		(70)		(47)		(134)
Amortization of prior service credits	(1)		(1)		(2)		(2)
Amortization of net actuarial loss	10		17		21		35
Curtailments and settlements	2		44		4		93
Net periodic pension benefit cost	$	10	$	32	$	19	$	85