Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

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

	Three Months Ended March 31,
	Pension Plans						Postretirement Welfare Plan
(Dollars in Millions)	2017			2016			2017			2016
Service cost	$	47		$	44		$	–		$	–
Interest cost		55			52			1			1
Expected return on plan assets		(71	)		(66	)		(1	)		–
Prior service cost (credit) amortization		(1	)		(1	)		(1	)		(1	)
Actuarial loss (gain) amortization		32			44			(1	)		(1	)
Net periodic benefit cost	$	62		$	73		$	(2	)	$	(1	)