PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2018

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

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

	Three Months Ended September 30,						Nine Months Ended September 30,
Dollars in Millions	2018			2017			2018			2017
Service cost – benefits earned during the year	$	6		$	7		$	20		$	19
Interest cost on projected benefit obligation	50			48			146			142
Expected return on plan assets	(97		)	(104		)	(315		)	(308		)
Amortization of prior service credits	(1		)	(1		)	(3		)	(3		)
Amortization of net actuarial loss	17			20			57			61
Curtailments and settlements	26			22			95			91
Net periodic pension benefit cost/(credit)	$	1		$	(8	)	$	—		$	2