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v3.23.1

Employee Benefit Plans (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
PRB plans | $ 4 | $ 5 |
Defined contribution plans | 372 | 311 |
Liability, Defined Benefit Plan, Current | 307 |  | $ 307
Liability, Defined Benefit Pension Plan, Noncurrent | 4,676 |  | 4,807
Non-service pension income | (444) | (480) |
Total net periodic benefit (income) expense | (388) | (360) |
Marketable securities held in trusts | 703 |  | 774
UNITED STATES |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plans | 0 | 0 |
Foreign Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plans | 8 | 12 |
Pension Plan [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Assets for Plan Benefits, Defined Benefit Plan | 3,527 |  | 3,301
Liability, Defined Benefit Pension Plan, Noncurrent | 4,004 |  | 4,133
Service cost | 55 | 118 |
Interest cost | 626 | 382 |
Expected return on plan assets | (937) | (890) |
Amortization of prior service credit | (39) | (42) |
Recognized actuarial net loss (gain) | (95) | 77 |
Net settlement, curtailment and special termination benefit (gain) loss | 2 | (6) |
Non-service pension income | (443) | (479) |
Total net periodic benefit (income) expense | (388) | (361) |
Other Postretirement Benefits Plan [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Liability, Defined Benefit Pension Plan, Noncurrent | 612 |  | 611
Service cost | 1 | 2 |
Interest cost | 12 | 7 |
Expected return on plan assets | (5) | (5) |
Amortization of prior service credit | 0 | 0 |
Recognized actuarial net loss (gain) | (8) | (3) |
Net settlement, curtailment and special termination benefit (gain) loss | 0 | 0 |
Non-service pension income | (1) | (1) |
Total net periodic benefit (income) expense | 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 |  | $ 63

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