Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Benefit or (Income) Cost Related to Pension and Postretirement Health Care and Life Insurance

The following table summarizes the components of net periodic benefit cost (income) related to our pension and postretirement health care and life insurance plans:

	(dollars in millions)
	Pension				Health Care and Life
Three Months Ended September 30,	2020		2019		2020		2019
Service cost - Cost of services	$	61	$	51	$	22	$	20
Service cost - Selling, general and administrative expense	15		11		5		4
Service cost	$	76	$	62	$	27	$	24
Amortization of prior service cost (credit)	$	16	$	15	$	(242)	$	(242)
Expected return on plan assets	(295)		(282)		(7)		(9)
Interest cost	124		173		108		157
Remeasurement loss, net	1,092		291		—		—
Other components	$	937	$	197	$	(141)	$	(94)
Total	$	1,013	$	259	$	(114)	$	(70)

	(dollars in millions)
	Pension				Health Care and Life
Nine Months Ended September 30,	2020		2019		2020		2019
Service cost - Cost of services	$	179	$	151	$	67	$	59
Service cost - Selling, general and administrative expense	43		34		15		13
Service cost	$	222	$	185	$	82	$	72
Amortization of prior service cost (credit)	$	46	$	46	$	(725)	$	(728)
Expected return on plan assets	(888)		(846)		(20)		(28)
Interest cost	401		527		322		472
Remeasurement loss, net	1,427		195		—		—
Other components	$	986	$	(78)	$	(423)	$	(284)
Total	$	1,208	$	107	$	(341)	$	(212)