Employee Benefits

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Employee Benefits

 Note 10    Employee Benefits

The components of net periodic benefit cost for the Company’s retirement plans were:

	Three Months Ended September 30,												Nine Months Ended September 30,
	Pension Plans						Postretirement Welfare Plan						Pension Plans						Postretirement Welfare Plan
(Dollars in Millions)	2017			2016			2017			2016			2017			2016			2017			2016
Service cost	$	47		$	45		$	–		$	–		$	140		$	133		$	–		$	–
Interest cost		55			53			–			–			165			158			2			2
Expected return on plan assets		(71	)		(66	)		(1	)		(1	)		(213	)		(198	)		(2	)		(1	)
Prior service cost (credit) amortization		–			(2	)		(1	)		–			(1	)		(4	)		(3	)		(2	)
Actuarial loss (gain) amortization		31			44			(1	)		(1	)		95			131			(4	)		(3	)
Net periodic benefit cost	$	62		$	74		$	(3	)	$	(2	)	$	186		$	220		$	(7	)	$	(4	)