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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2023
Retirement Benefits [Abstract] |
Change in Benefit Obligations and Fair Value of Plan Assets | An analysis of the projected benefit obligations for our pension plans and accumulated benefit obligations for our postretirement health and life insurance plans follows:
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2023 |  | 2022 |  | 2023 | 2022
| U.S. | Int’l. |  | U.S. | Int’l. |  |  |
Change in Benefit Obligation |  |  |  |  |  |  |  |
Benefit obligation at January 1 | $ | 1,478 |  | 2,776 |  |  | 1,924 |  | 4,124 |  |  | 102 |  | 137 |
Service cost | 51 |  | 38 |  |  | 58 |  | 47 |  |  | 1 |  | 1 |
Interest cost | 77 |  | 113 |  |  | 62 |  | 77 |  |  | 5 |  | 4 |
Plan participant contributions | — |  | — |  |  | — |  | — |  |  | 14 |  | 16 |
Plan amendments | — |  | — |  |  | — |  | — |  |  | — |  | 9 |
Actuarial (gain) loss | 40 |  | 11 |  |  | (325) |  | (847) |  |  | 22 |  | (27) |
Benefits paid | (121) |  | (124) |  |  | (241) |  | (144) |  |  | (37) |  | (38) |
Divestiture | — |  | — |  |  | — |  | (56) |  |  | — |  | — |
Foreign currency exchange rate change | — |  | 52 |  |  | — |  | (425) |  |  | — |  | — |
Benefit obligation at December 31* | $ | 1,525 |  | 2,866 |  |  | 1,478 |  | 2,776 |  |  | 107 |  | 102 |
*Accumulated benefit obligation portion of above at December 31: | $ | 1,414 |  | 2,642 |  |  | 1,384 |  | 2,542 |  |  |  |
Change in Fair Value of Plan Assets |  |  |  |  |  |  |  |
Fair value of plan assets at January 1 | $ | 1,179 |  | 2,879 |  |  | 1,664 |  | 4,812 |  |  | — |  | — |
Actual return on plan assets | 129 |  | 199 |  |  | (319) |  | (1,372) |  |  | — |  | — |
Company contributions | 119 |  | 58 |  |  | 75 |  | 96 |  |  | 23 |  | 22 |
Plan participant contributions | — |  | — |  |  | — |  | 1 |  |  | 14 |  | 16 |
Benefits paid | (121) |  | (124) |  |  | (241) |  | (144) |  |  | (37) |  | (38) |
Divestiture | — |  | — |  |  | — |  | (46) |  |  | — |  | — |
Foreign currency exchange rate change | — |  | 73 |  |  | — |  | (468) |  |  | — |  | — |
Fair value of plan assets at December 31 | $ | 1,306 |  | 3,085 |  |  | 1,179 |  | 2,879 |  |  | — |  | — |
Funded Status | $ | (219) |  | 219 |  |  | (299) |  | 103 |  |  | (107) |  | (102) |
Amounts Recognized in Balance Sheet and Assumptions |
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2023 |  | 2022 |  | 2023 | 2022
| U.S. | Int’l. |  | U.S. | Int’l. |  |  |
Amounts Recognized in the Consolidated Balance Sheet at December 31 |  |  |  |  |  |  |  |
Noncurrent assets | $ | — |  | 491 |  |  | — |  | 373 |  |  | — |  | — |
Current liabilities | (16) |  | (9) |  |  | (28) |  | (10) |  |  | (24) |  | (32) |
Noncurrent liabilities | (203) |  | (263) |  |  | (271) |  | (260) |  |  | (83) |  | (70) |
Total recognized | $ | (219) |  | 219 |  |  | (299) |  | 103 |  |  | (107) |  | (102) |
Weighted-Average Assumptions Used to Determine Benefit Obligations at December 31 |  |  |  |  |  |  |  |
Discount rate | 5.35 | % | 4.10 |  |  | 5.65 |  | 4.20 |  |  | 5.30 |  | 5.65 |
Rate of compensation increase | 5.00 |  | 3.65 |  |  | 5.00 |  | 3.65 |  |  |  |
Interest crediting rate for applicable benefits | 4.20 |  |  |  | 3.55 |  |  |  |  |
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Years Ended December 31 |  |  |  |  |  |  |  |
Discount rate | 5.65 | % | 4.20 |  |  | 3.85 |  | 2.15 |  |  | 5.65 |  | 2.65 |
Expected return on plan assets | 5.30 |  | 5.20 |  |  | 3.90 |  | 2.85 |  |  |  |
Rate of compensation increase | 5.00 |  | 3.65 |  |  | 4.00 |  | 3.40 |  |  |  |
Interest crediting rate for applicable benefits | 3.55 |  |  |  | 2.50 |  |  |  |  |
Projected and Accumulated Benefit Obligations in Excess of Fair Value | The following tables summarize information related to the Company's pension plans with projected and accumulated benefit obligations in excess of the fair value of the plans' assets:
| Millions of Dollars
| Pension Benefits
| 2023 |  | 2022
| U.S. | Int’l. |  | U.S. | Int’l.
Pension Plans with Projected Benefit Obligation in Excess of Plan Assets |  |  |  |  |
Projected benefit obligation | $ | 1,525 |  | 279 |  |  | 1,478 |  | 277 |
Fair value of plan assets | 1,306 |  | 6 |  |  | 1,179 |  | 6 |
Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets |  |  |  |  |
Accumulated benefit obligation | $ | 165 |  | 243 |  |  | 1,384 |  | 239 |
Fair value of plan assets | — |  | 6 |  |  | 1,179 |  | 6 |
Before-Tax Amounts not Recognized in Net Periodic Benefit Cost | Included in accumulated other comprehensive income (loss) at December 31 were the following before-tax amounts that had not been recognized in net periodic benefit cost:
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2023 |  | 2022 |  | 2023 | 2022
| U.S. | Int’l. |  | U.S. | Int’l. |  |  |
Unrecognized net actuarial loss (gain) | $ | 123 |  | 585 |  |  | 172 |  | 681 |  |  | 3 |  | (28) |
Unrecognized prior service cost (credit) | — |  | 1 |  |  | — |  | 1 |  |  | (60) |  | (98) |
Source of Change in Other Comprehensive Income (Loss) |
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2023 |  | 2022 |  | 2023 | 2022
| U.S. | Int’l. |  | U.S. | Int’l. |  |  |
Sources of Change in Other Comprehensive Income (Loss) |  |  |  |  |  |  |  |
Net gain (loss) arising during the period | $ | 30 |  | 29 |  |  | (44) |  | (606) |  |  | (22) |  | 27 |
Amortization of actuarial loss included in income (loss)* | 18 |  | 67 |  |  | 61 |  | 11 |  |  | (3) |  | — |
Net change during the period | $ | 48 |  | 96 |  |  | 17 |  | (595) |  |  | (25) |  | 27 |
Prior service credit (cost) arising during the period | $ | — |  | — |  |  | — |  | (1) |  |  | — |  | (9) |
Amortization of prior service (credit) included in income (loss) | — |  | — |  |  | — |  | (1) |  |  | (38) |  | (38) |
Net change during the period | $ | — |  | — |  |  | — |  | (2) |  |  | (38) |  | (47) |
*Includes settlement (gains) losses recognized in 2023 and 2022.
Components of Net Periodic Benefit Cost | The components of net periodic benefit cost of all defined benefit plans are presented in the following table:
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| 2023 |  | 2022 |  | 2021 |  | 2023 | 2022 | 2021
| U.S. | Int’l. |  | U.S. | Int’l. |  | U.S. | Int’l. |  |  |  |
Components of Net Periodic Benefit Cost |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 51 |  | 38 |  |  | 58 |  | 47 |  |  | 73 |  | 61 |  |  | 1 |  | 1 |  | 2 |
Interest cost | 77 |  | 113 |  |  | 62 |  | 77 |  |  | 53 |  | 79 |  |  | 5 |  | 4 |  | 4 |
Expected return on plan assets | (58) |  | (148) |  |  | (50) |  | (124) |  |  | (80) |  | (120) |  |  | — |  | — |  | — |
Amortization of prior service credit | — |  | — |  |  | — |  | (1) |  |  | — |  | (1) |  |  | (38) |  | (38) |  | (37) |
Recognized net actuarial loss (gain) | 12 |  | 67 |  |  | 24 |  | 11 |  |  | 43 |  | 33 |  |  | (3) |  | — |  | — |
Settlements loss (gain) | 6 |  | — |  |  | 37 |  | — |  |  | 102 |  | — |  |  | — |  | — |  | — |
Curtailment loss (gain) | — |  | — |  |  | — |  | — |  |  | 12 |  | — |  |  | — |  | — |  | — |
Net periodic benefit cost | $ | 88 |  | 70 |  |  | 131 |  | 10 |  |  | 203 |  | 52 |  |  | (35) |  | (33) |  | (31) |
Fair Values of Pension Plan Assets | The fair values of our pension plan assets at December 31, by asset class were as follows:
| Millions of Dollars
| U.S. |  | International
| Level 1 | Level 2 | Level 3 | Total |  | Level 1 | Level 2 | Level 3 | Total
2023 |  |  |  |  |  |  |  |  |
Equity securities |  |  |  |  |  |  |  |  |
U.S. | $ | 6 |  | — |  | — |  | 6 |  |  | — |  | — |  | — |  | — |
International | 35 |  | — |  | — |  | 35 |  |  | — |  | — |  | — |  | — |
Mutual funds | 15 |  | — |  | — |  | 15 |  |  | 244 |  | 276 |  | — |  | 520 |
Debt securities |  |  |  |  |  |  |  |  |
Corporate | — |  | 1 |  | — |  | 1 |  |  | — |  | — |  | — |  | — |
Mutual funds | — |  | — |  | — |  | — |  |  | 421 |  | — |  | — |  | 421 |
Cash and cash equivalents | — |  | — |  | — |  | — |  |  | 25 |  | — |  | — |  | 25 |
Real estate | — |  | — |  | — |  | — |  |  | — |  | — |  | 126 |  | 126 |
Total in fair value hierarchy | $ | 56 |  | 1 |  | — |  | 57 |  |  | 690 |  | 276 |  | 126 |  | 1,092 |
Investments measured at net asset value* |  |  |  |  |  |  |  |  |
Equity securities |  |  |  |  |  |  |  |  |
Common/collective trusts |  |  |  | 300 |  |  |  |  |  | 198 |
Debt securities |  |  |  |  |  |  |  |  |
Common/collective trusts |  |  |  | 868 |  |  |  |  |  | 1,791 |
Cash and cash equivalents |  |  |  | 6 |  |  |  |  |  | — |
Real estate |  |  |  | 28 |  |  |  |  |  | — |
Total** | $ | 56 |  | 1 |  | — |  | 1,259 |  |  | 690 |  | 276 |  | 126 |  | 3,081 |
*In accordance with FASB ASC Topic 715, “Compensation—Retirement Benefits,” certain investments that are to be measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Change in Fair Value of Plan Assets. **Excludes the participating interest in the insurance annuity contract with a net asset of $46 million and net receivables related to security transactions of $5 million. The fair values of our pension plan assets at December 31, by asset class were as follows:
| Millions of Dollars
| U.S. |  | International
| Level 1 | Level 2 | Level 3 | Total |  | Level 1 | Level 2 | Level 3 | Total
2022 |  |  |  |  |  |  |  |  |
Equity securities |  |  |  |  |  |  |  |  |
U.S. | $ | 4 |  | — |  | — |  | 4 |  |  | — |  | — |  | — |  | — |
International | 36 |  | — |  | — |  | 36 |  |  | — |  | — |  | — |  | — |
Mutual funds | 14 |  | — |  | — |  | 14 |  |  | 201 |  | 298 |  | — |  | 499 |
Debt securities |  |  |  |  |  |  |  |  |
Corporate | — |  | 1 |  | — |  | 1 |  |  | — |  | — |  | — |  | — |
Mutual funds | — |  | — |  | — |  | — |  |  | 365 |  | — |  | — |  | 365 |
Cash and cash equivalents | — |  | — |  | — |  | — |  |  | 36 |  | — |  | — |  | 36 |
Derivatives |  |  |  |  |  |  |  |  |
Real estate | — |  | — |  | — |  | — |  |  | — |  | — |  | 146 |  | 146 |
Total in fair value hierarchy | $ | 54 |  | 1 |  | — |  | 55 |  |  | 602 |  | 298 |  | 146 |  | 1,046 |
Investments measured at net asset value* |  |  |  |  |  |  |  |  |
Equity securities |  |  |  |  |  |  |  |  |
Common/collective trusts |  |  |  | 265 |  |  |  |  |  | 192 |
Debt securities |  |  |  |  |  |  |  |  |
Common/collective trusts |  |  |  | 759 |  |  |  |  |  | 1,637 |
Cash and cash equivalents |  |  |  | 10 |  |  |  |  |  | — |
Real estate |  |  |  | 34 |  |  |  |  |  | — |
Total** | $ | 54 |  | 1 |  | — |  | 1,123 |  |  | 602 |  | 298 |  | 146 |  | 2,875 |
*In accordance with FASB ASC Topic 715, “Compensation—Retirement Benefits,” certain investments that are to be measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Change in Fair Value of Plan Assets. **Excludes the participating interest in the insurance annuity contract with a net asset of $55 million and net receivables related to security transactions of $5 million.
Benefit Payments | The following benefit payments, which are exclusive of amounts to be paid from the insurance annuity contract and which reflect expected future service, as appropriate, are expected to be paid:
| Millions of Dollars
| Pension Benefits |  | Other Benefits
| U.S. | Int’l. |  |
2024 | $ | 205 |  | 128 |  |  | 16 |
2025 | 191 |  | 130 |  |  | 14 |
2026 | 175 |  | 133 |  |  | 14 |
2027 | 170 |  | 136 |  |  | 12 |
2028 | 162 |  | 141 |  |  | 11 |
2029–2033 | 664 |  | 778 |  |  | 45 |
Severance Accrual | The following table summarizes our severance accrual activity:
| Millions of Dollars
| 2023 | 2022 | 2021
Balance at January 1 | $ | 31 |  | 78 |  | 24 |
Accruals | 1 |  | 1 |  | 170 |
Benefit payments | (20) |  | (48) |  | (116) |
Balance at December 31 | $ | 12 |  | 31 |  | 78 |
Compensation Expense | Compensation Expense—Total share-based compensation expense recognized in net income (loss) and the associated tax benefit were:
| Millions of Dollars
| 2023 | 2022 | 2021
Compensation cost | $ | 334 |  | 377 |  | 304 |
Tax benefit | 84 |  | 95 |  | 76 |
Stock Option Activity | The following summarizes our stock option activity for the year ended December 31, 2023:
|  |  |  |  | Millions of Dollars
| Options |  | Weighted-Average Exercise Price |  | Aggregate Intrinsic Value
Outstanding at December 31, 2022 | 4,303,575 |  |  | $ | 55.28 |  |  | $ | 266 |
Exercised | (1,038,900) |  |  | 63.87 |  |  | 58 |
Expired or cancelled | — |  |  | — |  |  |
Outstanding at December 31, 2023 | 3,264,675 |  |  | $ | 52.55 |  |  | $ | 209 |
Vested at December 31, 2023 | 3,264,675 |  |  | $ | 52.55 |  |  | $ | 209 |
Exercisable at December 31, 2023 | 3,264,675 |  |  | $ | 52.55 |  |  | $ | 209 |
Restricted Stock Unit Activity | The following summarizes our stock-settled stock RSU activity for the year ended December 31, 2023:
| Stock Units |  | Weighted-Average Grant Date Fair Value |  | Millions of Dollars
|  |  | Total Fair Value
Outstanding at December 31, 2022 | 7,578,193 |  |  | $ | 61.20 |  |  |
Granted | 2,178,117 |  |  | 110.91 |  |  |
Forfeited | (144,021) |  |  | 88.54 |  |  |
Issued | (2,518,599) |  |  | 58.77 |  |  | $ | 284 |
Outstanding at December 31, 2023 | 7,093,690 |  |  | $ | 76.78 |  |  |
Not Vested at December 31, 2023 | 4,791,110 |  |  | $ | 78.20 |  |  |
Performance Share Program Activity | The following summarizes our stock-settled Performance Share Program activity for the year ended December 31, 2023:
|  |  | Weighted-Average Grant Date Fair Value |  | Millions of Dollars
| Stock Units |  |  | Total Fair Value
Outstanding at December 31, 2022 | 1,231,615 |  |  | $ | 50.68 |  |  |
Granted | 3,797 |  |  | 112.50 |  |  |
Forfeited | (72) |  |  | 55.13 |  |  |
Issued | (272,522) |  |  | 51.15 |  |  | $ | 29 |
Outstanding at December 31, 2023 | 962,818 |  |  | $ | 50.79 |  |  |
The following summarizes our cash-settled Performance Share Program activity for the year ended December 31, 2023:
|  |  | Weighted-Average Grant Date Fair Value |  | Millions of Dollars
| Stock Units |  |  | Total Fair Value
Outstanding at December 31, 2022 | 109,823 |  |  | $ | 117.11 |  |  |
Granted | 1,044,251 |  |  | 112.50 |  |  |
Settled | (1,053,204) |  |  | 104.94 |  |  | $ | 111 |
Outstanding at December 31, 2023 | 100,870 |  |  | $ | 116.68 |  |  |
Restricted Shares and Units Aggregate Activity | The following summarizes the aggregate activity of these restricted shares and units for the year ended December 31, 2023:
|  |  | Weighted-Average Grant Date Fair Value |  | Millions of Dollars
| Stock Units |  |  | Total Fair Value
Outstanding at December 31, 2022 | 1,239,759 |  |  | $ | 49.78 |  |  |
Granted | 54,141 |  |  | 115.88 |  |  |
Cancelled | (6,904) |  |  | 45.90 |  |  |
Issued | (392,728) |  |  | 47.64 |  |  | $ | 46 |
Outstanding at December 31, 2023 | 894,268 |  |  | $ | 54.76 |  |  |
Not Vested at December 31, 2023 | 149,270 |  |  | $ | 45.90 |  |  |

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