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Pension Plans and Other Post Employment Benefit Plans
 6 Months Ended
Jun. 30, 2021
Retirement Benefits [Abstract]  
Pension and Other Postretirement Benefits Disclosure [Text Block] PENSION PLANS AND OTHER POST EMPLOYMENT BENEFITS
The following sets forth the components of the company's net periodic (credit) benefit cost for defined benefit pension plans and other post employment benefits:
Three Months Ended
June 30,		Six Months Ended
June 30,
(In millions)2021202020212020
Defined Benefit Pension Plans:
Service cost$5 $8 $12 $13 
Interest cost91 140 182 281 
Expected return on plan assets(228)(249)(458)(500)
Amortization of unrecognized loss13 1 27 2 
Amortization of prior service benefit(1)(1)(1)(1)
Settlement loss— 1 1 3 
Net periodic (credit) benefit cost$(120)$(100)$(237)$(202)
Other Post Employment Benefits:
Service cost$— $— $— $1 
Interest cost5 17 11 33 
Amortization of unrecognized loss24 — 47 — 
Amortization of prior service benefit(231)— (461)— 
Curtailment gain(1)— (1)— 
Net periodic (credit) benefit cost$(203)$17 $(404)$34