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v3.23.2

Employee Benefit Plans (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
PRB plans | $ 8 | $ 4 | $ 12 | $ 9 |
Defined contribution plans | 317 | 251 | 689 | 562 |
Liability, Defined Benefit Plan, Current | 307 |  | 307 |  | $ 307
Liability, Defined Benefit Pension Plan, Noncurrent | 4,579 |  | 4,579 |  | 4,807
Non-service pension income | (447) | (474) | (891) | (954) |
Total net periodic benefit (income) expense |  |  | (778) | (714) |
Marketable securities held in trusts | 719 |  | 719 |  | 774
UNITED STATES |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Defined benefit plans | 0 | 0 | 0 | 0 |
Foreign Plan |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Defined benefit plans | 20 | 18 | 28 | 30 |
Pension Plan [Member] |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Assets for Plan Benefits, Defined Benefit Plan | 3,770 |  | 3,770 |  | 3,301
Liability, Defined Benefit Pension Plan, Noncurrent | 3,914 |  | 3,914 |  | 4,133
Service cost | 56 | 118 | 111 | 236 |
Interest cost | 627 | 380 | 1,253 | 762 |
Expected return on plan assets | (938) | (888) | (1,875) | (1,778) |
Amortization of prior service credit | (40) | (41) | (79) | (83) |
Recognized actuarial net loss (gain) | (95) | 77 | (190) | 154 |
Net settlement, curtailment and special termination benefit (gain) loss | 0 | 0 | 2 | (6) |
Non-service pension income | (446) | (472) | (889) | (951) |
Total net periodic benefit (income) expense | (390) | (354) | (778) | (715) |
Other Postretirement Benefits Plan [Member] |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Liability, Defined Benefit Pension Plan, Noncurrent | 605 |  | 605 |  | 611
Service cost | 1 | 2 | 2 | 4 |
Interest cost | 12 | 7 | 24 | 14 |
Expected return on plan assets | (5) | (6) | (10) | (11) |
Amortization of prior service credit | 0 | 0 | 0 | 0 |
Recognized actuarial net loss (gain) | (8) | (3) | (16) | (6) |
Net settlement, curtailment and special termination benefit (gain) loss | 0 | 0 | 0 | 0 |
Non-service pension income | (1) | (2) | (2) | (3) |
Total net periodic benefit (income) expense | 0 | $ 0 | 0 | $ 1 |
Other pension and PRB related items |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Liability, Defined Benefit Pension Plan, Noncurrent | $ 60 |  | $ 60 |  | $ 63

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