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Defined Benefit Postretirement Plans and Defined Contribution Plan (Tables)
 12 Months Ended
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan Obligations and funded status – The following summarizes the obligations and funded status for our defined benefit pension and other postretirement plans.    
 Pension BenefitsOther Benefits
 2022202120222021
(In millions)U.S.U.S.U.S.U.S.
Accumulated benefit obligation$214 $260 $53 $73 
Change in pension benefit obligations:
Beginning balance$269 $308 $73 $80 
Service cost14 16 — — 
Interest cost7 7 2 2 
Actuarial (gain) loss(46)(15)(11)1 
Settlements paid(21)(43)— — 
Benefits paid(5)(4)(11)(10)
Ending balance$218 $269 $53 $73 
Change in fair value of plan assets:
Beginning balance$192 $194 $— $— 
Actual return on plan assets(27)13 — — 
Employer contributions22 32 11 10 
Settlements paid(21)(43)— — 
Benefits paid(5)(4)(11)(10)
Ending balance$161 $192 $— $— 
Funded status of plans at December 31$(57)$(77)$(53)$(73)
Amounts recognized in the consolidated balance sheets:
Current liabilities$(3)$(3)$(8)$(10)
Noncurrent liabilities(54)(74)(45)(63)
Accrued benefit cost$(57)$(77)$(53)$(73)
Pretax amounts in accumulated other comprehensive loss:
Net loss $24 $37 $11 $23 
Prior service credit(8)(13)(65)(81)
Schedule of Net Periodic Benefit Cost
Components of net periodic benefit costs and other comprehensive (income) loss – The following summarizes the net periodic benefit costs and the amounts recognized as other comprehensive (income) loss for our defined benefit pension and other postretirement plans.
 Pension BenefitsOther Benefits
Year Ended December 31,Year Ended December 31,
 202220212020202220212020
(In millions)U.S.U.S.U.S.U.S.U.S.U.S.
Components of net periodic benefit costs:
Service cost$14 $16 $19 $— $— $1 
Interest cost7 7 9 2 2 2 
Expected return on plan assets(8)(8)(11)— — — 
Amortization:
- prior service credit(6)(6)(6)(16)(16)(18)
- actuarial loss2 5 9 2 2 2 
Net settlement loss(a)
2 9 30 — — — 
Net curtailment gain(b)
— — (3)— — (14)
Net periodic benefit cost (credit) (c)
$11 $23 $47 $(12)$(12)$(27)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss (pretax):
Actuarial loss (gain)$(10)$(21)$27 $(10)$1 $4 
Settlement loss and amortization of actuarial gain (loss)(4)(14)(40)(2)(2)(2)
Curtailment gain and amortization of prior service credit (cost)6 6 10 16 16 32 
Total recognized in other comprehensive (income) loss
$(8)$(29)$(3)$4 $15 $34 
Total recognized in net periodic benefit cost and other comprehensive (income) loss
$3 $(6)$44 $(8)$3 $7 
(a)Settlements are recognized as they occur, once it is probable that lump sum payments from a plan for a given year will exceed the plan’s total service and interest costs for that year.
(b)Related to workforce reductions, which reduced the future expected years of service for employees participating in the plans.
(c)Net periodic benefit costs (credits) reflects a calculated market-related value of plan assets, which recognizes changes in fair value over three years.
Schedule of Assumptions Used
Plan assumptions – The following summarizes the assumptions used to determine the benefit obligations at December 31, and net periodic benefit cost for the defined benefit pension and other postretirement plans for 2022, 2021 and 2020.
 Pension BenefitsOther Benefits
202220212020202220212020
U.S.U.S.U.S.U.S.U.S.U.S.
Weighted average assumptions used to determine benefit obligation:
Discount rate5.20 %2.83 %2.52 %5.07 %2.48 %2.02 %
Rate of compensation increase(a)
5.00 %0.50 %0.50 %5.00 %0.50 %0.50 %
Cash balance interest crediting 4.20 %3.00 %3.00 %— %— %— %
Weighted average assumptions used to determine net periodic benefit cost:
Discount rate4.02 %2.77 %2.90 %2.48 %2.02 %2.63 %
Expected long-term return on plan assets
5.75 %5.75 %6.00 %— %— %— %
Rate of compensation increase(b)
5.00 %0.50 %4.50 %5.00 %0.50 %4.50 %
Cash balance interest crediting3.60 %3.00 %3.00 %— %— %— %
(a)The assumed rate of compensation increase is 5.50% for the year 2023 and 4.50% for future years.
(b)The assumed rate of compensation increase is 4.50% for future years.
Schedule of Allocation of Plan Assets The following tables present the fair values of our defined benefit pension plan’s assets, by level within the fair value hierarchy, as of December 31, 2022 and 2021.
 December 31, 2022
(In millions)Level 1Level 2Level 3Total
Cash and cash equivalents$8 $— $— $8 
Equity securities:
Common stock22 — — 22 
Private equity— — 5 5 
Other— — 10 10 
Total investments, at fair value30 — 15 45 
Commingled funds(b)
— — — 116 
Total investments$30 $— $15 $161 
  
December 31, 2021
(In millions)Level 1Level 2Level 3Total
Cash and cash equivalents(a)
$(1)$— $— $(1)
Equity securities:
Common stock28 — — 28 
Private equity— — 7 7 
Other— — 16 16 
Total investments, at fair value27 — 23 50 
Commingled funds(b)
— — — 142 
Total investments$27 $— $23 $192 
(a)The negative cash balance was due to the timing of when investment trades occur and when they settle.
(b)After the adoption of the FASB update for the fair value hierarchy, we separately report the investments for which fair value was measured using the net asset value per share as a practical expedient. Amounts presented in this table are intended to reconcile the fair value hierarchy to the pension plan assets.
Schedule of Expected Benefit Payments Estimated future benefit payments – The following gross benefit payments, which were estimated based on actuarial assumptions applied at December 31, 2022 and reflect expected future services, as appropriate, are to be paid in the years indicated.
(In millions)Pension BenefitsOther Benefits
2023$25 $8 
202424 7 
202523 6 
202621 6 
202721 5 
2028 through 2032$100 $19