Pension Plans and Other Post Employment Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended March 31,
(In millions)	2022		2021
Defined Benefit Pension Plans:
Service cost	$	4	$	7
Interest cost	108		91
Expected return on plan assets	(190)		(230)
Amortization of unrecognized (gain) loss	1		14
Amortization of prior service (benefit) cost	(1)		—
Settlement loss	—		1
Net periodic benefit (credit) cost	$	(78)	$	(117)
Other Post Employment Benefits:
Interest cost	7		6
Amortization of unrecognized (gain) loss	—		23
Amortization of prior service (benefit) cost	—		(230)
Net periodic benefit (credit) cost	$	7	$	(201)