EMPLOYEE BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Schedule of Employer Contributions to Plans

Contributions to the plans were as follows:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(dollars in millions)	2020		2019		2020		2019
Defined benefit plans	$	1	$	2	$	29	$	29
Defined contribution plans	$	23	$	22	$	78	$	71
Multi-employer pension plans	$	5	$	5	$	15	$	15

Schedule of Defined Benefit Plans Disclosures

The following table illustrates the components of net periodic pension benefits for our defined benefit pension and post-retirement benefit plans:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(dollars in millions)	2020		2019		2020		2019
Service cost	$	7	$	7	$	22	$	23
Interest cost	13		17		39		50
Expected return on plan assets	(35)		(37)		(104)		(115)
Amortization of prior service credit	1		—		2		1
Recognized actuarial net loss	5		2		15		7
Net settlement, curtailment and special termination benefit loss	—		—		1		1
Net periodic pension benefit	$	(9)	$	(11)	$	(25)	$	(33)

Schedule of Multiemployer Plans

The pension and post-retirement expense and benefits were as follows:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
(dollars in millions)	2020		2019		2020		2019
Service cost	$	—	$	4	$	—	$	13
Non-service pension benefit	—		(20)		(2)		(59)
Total net periodic benefit	$	—	$	(16)	$	(2)	$	(46)