Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Components of net periodic cost (benefit)

The components of net periodic pension cost (benefit) are presented in the following table.

Periods ended June 30	Three Months				Six Months
(In millions)	2021		2020		2021		2020
Net periodic pension cost (benefit)
Interest cost on projected benefit obligation	$	16	$	20	$	31	$	40
Expected return on plan assets	(39)		(39)		(77)		(78)
Amortization of net actuarial (gain) loss	11		11		23		22
Settlement loss	1		1		1		2
Total net periodic pension cost (benefit)	$	(11)	$	(7)	$	(22)	$	(14)