PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The net periodic benefit cost/(credit) of defined benefit pension plans includes:

	Three Months Ended March 31,
Dollars in Millions	2019			2018
Service cost – benefits earned during the year	$	7		$	7
Interest cost on projected benefit obligation	44			46
Expected return on plan assets	(64		)	(109		)
Amortization of prior service credits	(1		)	(1		)
Amortization of net actuarial loss	18			21
Curtailments and settlements	49			31
Net periodic pension benefit cost/(credit)	$	53		$	(5	)