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Pension and Other Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract] |
Weighted-Average Assumed Discount Rate, Compensation Increases and Expected Long-Term Rate of Return on Plan Assets Used to Determine Net Pension Cost for US and International Plans | The weighted-average assumed discount rate, compensation increases and expected long-term rate of return on plan assets used to determine the net pension cost for the US and International plans were as follows:
| US |  |  | International |
| 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Discount rate |  | 3.30 | % |  |  | 4.30 | % |  |  | 3.70 | % |  |  | 3.27 | % |  |  | 4.00 | % |  |  | 3.55 | %
Compensation increases |  | 4.00 | % |  |  | 4.00 | % |  |  | 4.00 | % |  |  | 4.82 | % |  |  | 4.83 | % |  |  | 4.81 | %
Return on plan assets |  | 6.60 | % |  |  | 6.60 | % |  |  | 7.25 | % |  |  | 6.71 | % |  |  | 7.22 | % |  |  | 7.40 | %
Net Pension Cost (Credit) for Schlumberger Pension Plans and US Postretirement Medical Plan | Net pension cost (credit) for 2020, 2019 and 2018 included the following components:
(Stated in millions) |
| US |  |  | International |
| 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Service cost - benefits earned during the period | $ | 55 |  |  | $ | 49 |  |  | $ | 59 |  |  | $ | 140 |  |  | $ | 112 |  |  | $ | 138 |
Interest cost on projected benefit obligation |  | 148 |  |  |  | 180 |  |  |  | 167 |  |  |  | 301 |  |  |  | 333 |  |  |  | 304 |
Expected return on plan assets |  | (233 | ) |  |  | (232 | ) |  |  | (248 | ) |  |  | (591 | ) |  |  | (592 | ) |  |  | (584 | )
Amortization of prior service cost |  | 8 |  |  |  | 10 |  |  |  | 13 |  |  |  | - |  |  |  | 7 |  |  |  | 10 |
Amortization of net loss |  | 41 |  |  |  | 29 |  |  |  | 47 |  |  |  | 159 |  |  |  | 70 |  |  |  | 140 |
Settlement charge |  | - |  |  |  | 37 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
| $ | 19 |  |  | $ | 73 |  |  | $ | 38 |  |  | $ | 9 |  |  | $ | (70 | ) |  | $ | 8 |
The net periodic benefit credit for the US postretirement medical plan included the following components:
(Stated in millions) |
| 2020 |  |  | 2019 |  |  | 2018 |
Service cost | $ | 31 |  |  | $ | 29 |  |  | $ | 32 |
Interest cost |  | 36 |  |  |  | 45 |  |  |  | 43 |
Expected return on plan assets |  | (70 | ) |  |  | (64 | ) |  |  | (63 | )
Amortization of prior service credit |  | (25 | ) |  |  | (28 | ) |  |  | (28 | )
Curtailment gain |  | (69 | ) |  |  | - |  |  |  | - |
| $ | (97 | ) |  | $ | (18 | ) |  | $ | (16 | )
Weighted-Average Assumed Discount Rate and Compensation Increases Used to Determine Projected Benefit Obligations for US and International Plans | The weighted-average assumed discount rate and compensation increases used to determine the projected benefit obligations for the US and International plans were as follows:
| US |  |  | International |
| 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Discount rate |  | 2.60 | % |  |  | 3.30 | % |  |  | 2.38 | % |  |  | 3.27 | %
Compensation increases |  | 4.00 | % |  |  | 4.00 | % |  |  | 4.82 | % |  |  | 4.83 | %
Changes In Projected Benefit Obligation Plan Assets And Funded Status Of Plans | The changes in the projected benefit obligation, plan assets and funded status of the plans were as follows:
(Stated in millions) |
| US |  |  | International |
| 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Change in Projected Benefit Obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation at beginning of year | $ | 4,593 |  |  | $ | 4,278 |  |  | $ | 9,647 |  |  | $ | 8,111 |
Service cost |  | 55 |  |  |  | 49 |  |  |  | 140 |  |  |  | 112 |
Interest cost |  | 148 |  |  |  | 180 |  |  |  | 301 |  |  |  | 333 |
Contribution by plan participants |  | - |  |  |  | - |  |  |  | 94 |  |  |  | 63 |
Actuarial losses |  | 370 |  |  |  | 535 |  |  |  | 1,233 |  |  |  | 1,304 |
Currency effect |  | - |  |  |  | - |  |  |  | 68 |  |  |  | 50 |
Settlement |  | - |  |  |  | (240 | ) |  |  | (5 | ) |  |  | (17 | )
Benefits paid |  | (226 | ) |  |  | (209 | ) |  |  | (338 | ) |  |  | (309 | )
Projected benefit obligation at end of year | $ | 4,940 |  |  | $ | 4,593 |  |  | $ | 11,140 |  |  | $ | 9,647 |
Change in Plan Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plan assets at fair value at beginning of year | $ | 4,236 |  |  | $ | 3,748 |  |  | $ | 9,363 |  |  | $ | 7,872 |
Actual return on plan assets |  | 760 |  |  |  | 931 |  |  |  | 1,282 |  |  |  | 1,676 |
Currency effect |  | - |  |  |  | - |  |  |  | 72 |  |  |  | 59 |
Company contributions |  | 6 |  |  |  | 6 |  |  |  | 20 |  |  |  | 19 |
Contributions by plan participants |  | - |  |  |  | - |  |  |  | 94 |  |  |  | 63 |
Settlement |  | - |  |  |  | (240 | ) |  |  | - |  |  |  | (17 | )
Benefits paid |  | (226 | ) |  |  | (209 | ) |  |  | (338 | ) |  |  | (309 | )
Plan assets at fair value at end of year | $ | 4,776 |  |  | $ | 4,236 |  |  | $ | 10,493 |  |  | $ | 9,363 |
Unfunded Liability | $ | (164 | ) |  | $ | (357 | ) |  | $ | (647 | ) |  | $ | (284 | )
Amounts Recognized in Balance Sheet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Postretirement Benefits | $ | (199 | ) |  | $ | (357 | ) |  | $ | (849 | ) |  | $ | (602 | )
Other Assets |  | 35 |  |  |  | - |  |  |  | 202 |  |  |  | 318 |
| $ | (164 | ) |  | $ | (357 | ) |  | $ | (647 | ) |  | $ | (284 | )
Amounts Recognized in Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actuarial losses | $ | 423 |  |  | $ | 622 |  |  | $ | 1,981 |  |  | $ | 1,638 |
Prior service cost |  | 1 |  |  |  | 9 |  |  |  | - |  |  |  | - |
| $ | 424 |  |  | $ | 631 |  |  | $ | 1,981 |  |  | $ | 1,638 |
Accumulated benefit obligation | $ | 4,739 |  |  | $ | 4,345 |  |  | $ | 10,844 |  |  | $ | 9,376 |
Weighted-Average Allocation of Plan Assets and Target Allocation by Asset Category | The weighted-average allocation of plan assets and the target allocations by asset category are as follows:
| US |  |  |  | International |
| Target |  |  |  | 2020 |  |  |  | 2019 |  |  |  | Target |  |  |  | 2020 |  |  |  | 2019 |
Equity securities | 11 - 20 |  | % |  |  | 15 |  | % |  |  | 22 |  | % |  | 40 - 54 |  | % |  |  | 43 |  | % |  |  | 50 |
Debt securities | 70 - 83 |  |  |  |  | 76 |  |  |  |  | 70 |  |  |  | 28 - 43 |  |  |  |  | 36 |  |  |  |  | 31 |
Cash and cash equivalents | 0 - 3 |  |  |  |  | 3 |  |  |  |  | 2 |  |  |  | 0 - 5 |  |  |  |  | 4 |  |  |  |  | 4 |
Alternative investments | 5 - 10 |  |  |  |  | 6 |  |  |  |  | 6 |  |  |  | 15 - 22 |  |  |  |  | 17 |  |  |  |  | 15 |
|  | 100 |  | % |  |  | 100 |  | % |  |  | 100 |  | % |  |  | 100 |  | % |  |  | 100 |  | % |  |  | 100 |
Fair Value of Schlumberger's Pension Plan Assets | The fair value of Schlumberger’s pension plan assets at December 31, 2020 and 2019, by asset category, is presented below and was determined based on valuation techniques categorized as follows:
| • | Level One: The use of quoted prices in active markets for identical instruments.
| • | Level Two: The use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or other inputs that are observable in the market or can be corroborated by observable market data.
| • | Level Three: The use of significant unobservable inputs that typically require the use of management’s estimates of assumptions that market participants would use in pricing.
(Stated in millions) |
| US Plan Assets |
| 2020 |  |  | 2019 |
|  |  |  |  | Level |  |  | Level |  |  | Level |  |  |  |  |  |  | Level |  |  | Level |  |  | Level |
| Total |  |  | One |  |  | Two |  |  | Three |  |  | Total |  |  | One |  |  | Two |  |  | Three |
Asset Category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 140 |  |  | $ | 127 |  |  | $ | 13 |  |  | $ | - |  |  | $ | 73 |  |  | $ | 59 |  |  | $ | 14 |  |  | $ | - |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US (a) |  | 527 |  |  |  | 441 |  |  |  | 86 |  |  |  | - |  |  |  | 605 |  |  |  | 500 |  |  |  | 105 |  |  |  | - |
International (b) |  | 186 |  |  |  | 182 |  |  |  | 4 |  |  |  | - |  |  |  | 320 |  |  |  | 315 |  |  |  | 5 |  |  |  | - |
Debt Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds (c) |  | 1,945 |  |  |  | - |  |  |  | 1,945 |  |  |  | - |  |  |  | 1,687 |  |  |  | - |  |  |  | 1,687 |  |  |  | - |
Government and government-related debt securities (d) |  | 1,658 |  |  |  | 180 |  |  |  | 1,478 |  |  |  | - |  |  |  | 1,256 |  |  |  | 74 |  |  |  | 1,182 |  |  |  | - |
Collateralized mortgage obligations and mortgage backed securities (e) |  | 21 |  |  |  | - |  |  |  | 21 |  |  |  | - |  |  |  | 21 |  |  |  | - |  |  |  | 21 |  |  |  | - |
Alternative Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private equity (f) |  | 204 |  |  |  | - |  |  |  | - |  |  |  | 204 |  |  |  | 181 |  |  |  | - |  |  |  | - |  |  |  | 181 |
Real estate (g) |  | 95 |  |  |  | - |  |  |  | - |  |  |  | 95 |  |  |  | 93 |  |  |  | - |  |  |  | - |  |  |  | 93 |
Total | $ | 4,776 |  |  | $ | 930 |  |  | $ | 3,547 |  |  | $ | 299 |  |  | $ | 4,236 |  |  | $ | 948 |  |  | $ | 3,014 |  |  | $ | 274 |
(Stated in millions) |
| International Plan Assets |
| 2020 |  |  | 2019 |
|  |  |  |  | Level |  |  | Level |  |  | Level |  |  |  |  |  |  | Level |  |  | Level |  |  | Level |  |
| Total |  |  | One |  |  | Two |  |  | Three |  |  | Total |  |  | One |  |  | Two |  |  | Three |  |
Asset Category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 457 |  |  | $ | 215 |  |  | $ | 242 |  |  | $ | - |  |  | $ | 351 |  |  | $ | 166 |  |  | $ | 185 |  |  | $ | - |  |
Equity Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US (a) |  | 2,797 |  |  |  | 2,393 |  |  |  | 404 |  |  |  | - |  |  |  | 2,834 |  |  |  | 2,347 |  |  |  | 487 |  |  |  | - |  |
International (b) |  | 1,711 |  |  |  | 1,615 |  |  |  | 96 |  |  |  | - |  |  |  | 1,871 |  |  |  | 1,723 |  |  |  | 148 |  |  |  | - |  |
Debt Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds (c) |  | 1,260 |  |  |  | - |  |  |  | 1,260 |  |  |  | - |  |  |  | 1,105 |  |  |  | - |  |  |  | 1,105 |  |  |  | - |  |
Government and government-related debt securities (d) |  | 2,405 |  |  |  | 213 |  |  |  | 2,192 |  |  |  | - |  |  |  | 1,602 |  |  |  | 5 |  |  |  | 1,597 |  |  |  | - |  |
Collateralized mortgage obligations and mortgage backed securities (e) |  | 122 |  |  |  | - |  |  |  | 122 |  |  |  | - |  |  |  | 161 |  |  |  | - |  |  |  | 161 |  |  |  | - |  |
Alternative Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private equity (f) |  | 851 |  |  |  | - |  |  |  | - |  |  |  | 851 |  |  |  | 623 |  |  |  | - |  |  |  | - |  |  |  | 623 |  |
Real estate (g) |  | 200 |  |  |  | - |  |  |  | - |  |  |  | 200 |  |  |  | 183 |  |  |  | - |  |  |  | - |  |  |  | 183 |  |
Other |  | 690 |  |  |  | - |  |  |  | - |  |  |  | 690 |  |  |  | 633 |  |  |  | - |  |  |  | - |  |  |  | 633 |  |
Total | $ | 10,493 |  |  | $ | 4,436 |  |  | $ | 4,316 |  |  | $ | 1,741 |  |  | $ | 9,363 |  |  | $ | 4,241 |  |  | $ | 3,683 |  |  | $ | 1,439 |  |
(a) | US equities include companies that are well-diversified by industry sector and equity style (i.e., growth and value strategies). Active and passive management strategies are employed. Investments are primarily in large capitalization stocks and, to a lesser extent, mid- and small-cap stocks.
(b) | International equities are invested in companies that are traded on exchanges outside the US and are well-diversified by industry sector, country and equity style. Active and passive strategies are employed. The vast majority of the investments are made in companies in developed markets, with a small percentage in emerging markets.
(c) | Corporate bonds consist primarily of investment grade bonds from diversified industries.
(d) | Government and government-related debt securities are comprised primarily of inflation-protected US treasuries and, to a lesser extent, other government-related securities.
(e) | Collateralized mortgage obligations and mortgage backed-securities are debt obligations that represent claims to the cash flows from pools of mortgage loans, which are purchased from banks, mortgage companies, and other originators and then assembled into pools by governmental, quasi-governmental and private entities.
(f) | Private equity includes investments in several funds of funds.
(g) | Real estate primarily includes investments in real estate limited partnerships, concentrated in commercial real estate.
Defined Benefit Plan Weighted Average Assumptions Used in Calculating Benefit Obligation and Net Periodic Benefit Cost for US Postretirement Medical Plan | The actuarial assumptions used to determine the accumulated postretirement benefit obligation and net periodic benefit cost for the US postretirement medical plan were as follows:
| Benefit Obligations |  |  | Net Periodic Benefit |
| At December 31, |  |  | Cost for the Year |
| 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |  |  | 2018 |
Discount rate |  | 2.60 | % |  |  | 3.30 | % |  |  | 3.30 | % |  |  | 4.30 | % |  |  | 3.70 | %
Return on plan assets | - |  |  | - |  |  |  | 7.00 | % |  |  | 7.00 | % |  |  | 7.00 | %
Current medical cost trend rate |  | 7.25 | % |  |  | 7.50 | % |  |  | 7.25 | % |  |  | 7.50 | % |  |  | 7.00 | %
Ultimate medical cost trend rate |  | 4.50 | % |  |  | 4.50 | % |  |  | 4.50 | % |  |  | 4.50 | % |  |  | 5.00 | %
Year that the rate reaches the ultimate trend rate | 2031 |  |  | 2031 |  |  | 2031 |  |  | 2031 |  |  | 2026 |
Changes in Accumulated Postretirement Benefit Obligation, Plan Assets and Funded Status | The changes in the accumulated postretirement benefit obligation, plan assets and funded status were as follows:
(Stated in millions) |
| 2020 |  |  | 2019 |
Change in Projected Benefit Obligations |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 1,193 |  |  | $ | 1,106 |
Service cost |  | 31 |  |  |  | 29 |
Interest cost |  | 36 |  |  |  | 45 |
Contribution by plan participants |  | 8 |  |  |  | 8 |
Actuarial (gains) losses |  | 64 |  |  |  | 65 |
Benefits paid |  | (58 | ) |  |  | (60 | )
Curtailment |  | (40 | ) |  |  | - |
Benefit obligation at end of year | $ | 1,234 |  |  | $ | 1,193 |
Change in Plan Assets |  |  |  |  |  |  |
Plan assets at fair value at beginning of year | $ | 1,185 |  |  | $ | 997 |
Actual return on plan assets |  | 221 |  |  |  | 240 |
Contributions by plan participants |  | 8 |  |  |  | 8 |
Benefits paid |  | (58 | ) |  |  | (60 | )
Plan assets at fair value at end of year | $ | 1,356 |  |  | $ | 1,185 |
Asset (Unfunded Liability) | $ | 122 |  |  | $ | (8 | )
Amounts Recognized in Accumulated Other Comprehensive Loss |  |  |  |  |  |  |
Actuarial (gains) losses | $ | (186 | ) |  | $ | (98 | )
Prior service credit |  | (104 | ) |  |  | (158 | )
| $ | (290 | ) |  | $ | (256 | )
Expected Benefits to be Paid Under US and International Pension Plans and Postretirement Medical Plan | The expected benefits to be paid under the US and International pension plans as well as the postretirement medical plan are as follows:
(Stated in millions) |
| Pension Benefits |  |  | Postretirement |
| US |  |  | International |  |  | Medical Plan |
2021 | $ | 235 |  |  | $ | 349 |  |  | $ | 56 |
2022 | $ | 235 |  |  | $ | 359 |  |  | $ | 56 |
2023 | $ | 236 |  |  | $ | 370 |  |  | $ | 56 |
2024 | $ | 237 |  |  | $ | 381 |  |  | $ | 56 |
2025 | $ | 237 |  |  | $ | 385 |  |  | $ | 57 |
2026-2030 | $ | 1,193 |  |  | $ | 2,146 |  |  | $ | 297 |

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