Employment Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

Components of the net (benefit) cost for the Pension Plans were as follows (in millions):

	Pension Benefits
	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost	$	6	$	7	$	16	$	24
Interest cost	18		20		53		62
Expected return on plan assets	(42)		(41)		(126)		(120)
Amortization of net gain	—		—		1		(1)
Amortization of prior service credits	—		—		—		(3)
Curtailment gain	—		—		—		(117)
Net (benefit) cost recognized	$	(18)	$	(14)	$	(56)	$	(155)