Schlumberger Limited (SLB) 10-Q 21 Oct 20 2020 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	9 Months Ended
	Sep. 30, 2020shares
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Registrant Name	SCHLUMBERGER LIMITED/NV
Entity Central Index Key	0000087347
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	1,392,030,009
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity File Number	1-4601
Entity Tax Identification Number	52-0684746
Entity Address, Address Line One	5599 SAN FELIPE
Entity Address, City or Town	HOUSTON
Entity Address, State or Province	TX
Entity Incorporation, State or Country Code	P8
Entity Address, Country	US
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	513-2000
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	common stock, par value $0.01 per share
Security Exchange Name	NYSE
Trading Symbol	SLB

CONSOLIDATED STATEMENT OF LOSS

CONSOLIDATED STATEMENT OF LOSS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue
Total Revenue	$ 5,258	$ 8,541	$ 18,069	$ 24,689
Interest & other income	22	21	94	61
Expenses
Research & engineering	137	176	452	527
General & administrative	85	120	293	345
Impairments & other	350	12,692	12,596	12,692
Interest	138	160	419	462
Loss before taxes	(54)	(11,971)	(11,769)	(10,870)
Tax expense (benefit)	19	(598)	(901)	(420)
Net loss	(73)	(11,373)	(10,868)	(10,450)
Net income attributable to noncontrolling interests	9	10	24	20
Net loss attributable to Schlumberger	$ (82)	$ (11,383)	$ (10,892)	$ (10,470)
Basic loss per share of Schlumberger	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)
Diluted loss per share of Schlumberger	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)
Average shares outstanding:
Basic	1,391	1,385	1,389	1,385
Assuming dilution	1,391	1,385	1,389	1,385
Services
Revenue
Total Revenue	$ 3,666	$ 6,332	$ 12,812	$ 18,390
Expenses
Cost of services and sales	3,127	5,371	11,236	15,794
Product
Revenue
Total Revenue	1,592	2,209	5,257	6,299
Expenses
Cost of services and sales	$ 1,497	$ 2,014	$ 4,936	$ 5,800

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (73)	$ (11,373)	$ (10,868)	$ (10,450)
Currency translation adjustments
Unrealized net change arising during the period	(94)	(21)	(200)	18
Cash flow hedges
Net gain (loss) on cash flow hedges	36	(27)	(195)	(31)
Reclassification to net income of net realized loss	7	3	12	7
Pension and other postretirement benefit plans
Amortization to net loss of net actuarial loss	48	23	150	70
Amortization to net loss of net prior service credit	(2)	(2)	(13)	(8)
Impact of curtailment			(69)
Income taxes on pension and other postretirement benefit plans		(1)	10	(3)
Comprehensive loss	(78)	(11,398)	(11,173)	(10,397)
Comprehensive income attributable to noncontrolling interests	9	10	24	20
Comprehensive loss attributable to Schlumberger	$ (87)	$ (11,408)	$ (11,197)	$ (10,417)

CONSOLIDATED BALANCE SHEET

CONSOLIDATED BALANCE SHEET - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash	$ 1,219	$ 1,137
Short-term investments	2,618	1,030
Receivables less allowance for doubtful accounts (2020 - $299; 2019 - $255)	5,552	7,747
Inventories	3,542	4,130
Other current assets	1,284	1,486
Current assets total	14,215	15,530
Investments in Affiliated Companies	1,436	1,565
Fixed Assets less accumulated depreciation	7,396	9,270
Multiclient Seismic Data	344	568
Goodwill	12,968	16,042
Intangible Assets	3,573	7,089
Deferred Taxes	33
Other Assets	4,101	6,248
Total Assets	44,066	56,312
Current Liabilities
Accounts payable and accrued liabilities	9,201	10,663
Estimated liability for taxes on income	974	1,209
Short-term borrowings and current portion of long-term debt	1,292	524
Dividends payable	184	702
Current Liabilities Total	11,651	13,098
Long-term Debt	16,471	14,770
Postretirement Benefits	854	967
Deferred Taxes		491
Other Liabilities	2,721	2,810
Total Liabilities	31,697	32,136
Equity
Common stock	12,921	13,078
Treasury stock	(3,055)	(3,631)
Retained earnings	6,818	18,751
Accumulated other comprehensive loss	(4,743)	(4,438)
Schlumberger stockholders’ equity	11,941	23,760
Noncontrolling interests	428	416
Total equity	12,369	24,176
Liabilities and stockholders equity	$ 44,066	$ 56,312

CONSOLIDATED BALANCE SHEET (Par

CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts on receivable	$ 299	$ 255

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss		$ (10,868)	$ (10,450)
Adjustments to reconcile net loss to cash provided by operating activities:
Impairments and other charges		12,596	12,692
Depreciation and amortization	[1]	1,983	2,741
Deferred taxes		(1,147)	(833)
Stock-based compensation expense		318	329
Earnings of equity method investments, less dividends received		(18)	2
Change in assets and liabilities:
Decrease (increase) in receivables	[2]	2,159	(429)
Increase in inventories	[2]	(24)	(400)
Decrease (increase) in other current assets	[2]	202	(127)
Decrease (increase) in other assets		25	(12)
Decrease in accounts payable and accrued liabilities	[2]	(2,898)	(266)
Decrease in estimated liability for taxes on income		(261)	(118)
Decrease in other liabilities	[2]	(14)	(19)
Other	[2]	13	69
NET CASH PROVIDED BY OPERATING ACTIVITIES		2,066	3,179
Cash flows from investing activities:
Capital expenditures		(858)	(1,230)
APS investments		(252)	(526)
Multiclient seismic data costs capitalized		(86)	(181)
Business acquisitions and investments, net of cash acquired		(33)	(21)
(Purchase) sale of investments, net		(1,597)	238
Net proceeds from divestitures		325
Other		(98)	(88)
NET CASH USED IN INVESTING ACTIVITIES		(2,599)	(1,808)
Cash flows from financing activities:
Dividends paid		(1,560)	(2,077)
Proceeds from employee stock purchase plan		146	196
Proceeds from exercise of stock options			23
Stock repurchase program		(26)	(278)
Proceeds from issuance of long-term debt		5,837	3,973
Repayment of long-term debt		(3,811)	(3,396)
Net increase (decrease) in short-term borrowings		96	(44)
Other		(51)	(18)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		631	(1,621)
Net increase in cash before translation effect		98	(250)
Translation effect on cash		(16)
Cash, beginning of period		1,137	1,433
Cash, end of period		$ 1,219	$ 1,183
[1]	Includes depreciation of property, plant and equipment and amortization of intangible assets, multiclient seismic data costs, and APS investments.
[2]	Net of the effect of business acquisitions and divestitures.

CONSOLIDATED STATEMENT OF STOCK

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock Issued	Common Stock In Treasury	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2018	$ 36,586	$ 13,132	$ (4,006)	$ 31,658	$ (4,622)	$ 424
Net loss	(10,450)			(10,470)		20
Currency translation adjustments	14				18	(4)
Changes in fair value of cash flow hedges	(24)				(24)
Pension and other postretirement benefit plans	59				59
Shares sold to optionees, less shares exchanged	23	(26)	49
Vesting of restricted stock		(146)	146
Shares issued under employee stock purchase plan	196	(249)	445
Stock repurchase program	(278)		(278)
Stock-based compensation expense	329	329
Dividends declared	(2,077)			(2,077)
Other	(51)	(28)	3			(26)
Balance at Sep. 30, 2019	24,327	13,012	(3,641)	19,111	(4,569)	414
Balance at Jun. 30, 2019	36,273	13,037	(3,827)	31,186	(4,544)	421
Net loss	(11,373)			(11,383)		10
Currency translation adjustments	(25)				(21)	(4)
Changes in fair value of cash flow hedges	(24)				(24)
Pension and other postretirement benefit plans	20				20
Shares sold to optionees, less shares exchanged		(20)	20
Vesting of restricted stock	111	(134)	245
Stock repurchase program	(79)		(79)
Stock-based compensation expense	135	135
Dividends declared	(692)			(692)
Other	(19)	(6)				(13)
Balance at Sep. 30, 2019	24,327	13,012	(3,641)	19,111	(4,569)	414
Balance at Dec. 31, 2019	$ 24,176	$ 13,078	$ (3,631)	18,751	(4,438)	416
Balance, shares at Dec. 31, 2019	1,385	1,434
Treasury shares, Balance at Dec. 31, 2019			(49)
Net loss	$ (10,868)			(10,892)		24
Currency translation adjustments	(198)				(200)	2
Changes in fair value of cash flow hedges	(183)				(183)
Pension and other postretirement benefit plans	$ 78				78
Vesting of restricted stock		$ (152)	$ 152
Vesting of restricted stock, shares	2		2
Shares issued under employee stock purchase plan	$ 146	(298)	$ 444
Shares issued under employee stock purchase plan, shares	6		6
Stock repurchase program	$ (26)		$ (26)
Stock repurchase program, shares	(1)		(1)
Stock-based compensation expense	$ 318	318
Dividends declared	(1,041)			(1,041)
Other	(33)	(25)	$ 6			(14)
Balance at Sep. 30, 2020	$ 12,369	$ 12,921	$ (3,055)	6,818	(4,743)	428
Balance, shares at Sep. 30, 2020	1,392	1,434
Treasury shares, Balance at Sep. 30, 2020			(42)
Balance at Jun. 30, 2020	$ 12,456	$ 13,044	$ (3,339)	7,073	(4,738)	416
Net loss	(73)			(82)		9
Currency translation adjustments	(90)				(94)	4
Changes in fair value of cash flow hedges	43				43
Pension and other postretirement benefit plans	46				46
Vesting of restricted stock		(21)	21
Shares issued under employee stock purchase plan	61	(203)	264
Stock-based compensation expense	105	105
Dividends declared	(173)			(173)
Other	(6)	(4)	(1)			(1)
Balance at Sep. 30, 2020	$ 12,369	$ 12,921	$ (3,055)	$ 6,818	$ (4,743)	$ 428
Balance, shares at Sep. 30, 2020	1,392	1,434
Treasury shares, Balance at Sep. 30, 2020			(42)

CONSOLIDATED STATEMENT OF STO_2

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Parenthetical) (Unaudited) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Retained Earnings
Dividends declared, per share	$ 0.125	$ 0.50	$ 0.75	$ 1.50

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited consolidated financial statements of Schlumberger Limited and its subsidiaries (“Schlumberger”) have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of Schlumberger management, all adjustments considered necessary for a fair statement have been included in the accompanying unaudited financial statements. All intercompany transactions and balances have been eliminated in consolidation. Operating results for the nine-month period ended September 30, 2020 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2020. The December 31, 2019 balance sheet information has been derived from the Schlumberger 2019 audited financial statements. For further information, refer to the Consolidated Financial Statements On August 31, 2020, Schlumberger and Liberty Oilfield Services Inc. (“Liberty”) entered into an agreement for the contribution to Liberty of OneStim ®

Charges and Credits

Charges and Credits	9 Months Ended
	Sep. 30, 2020
Restructuring And Related Activities [Abstract]
Charges and Credits	2. Charges and Credits Schlumberger recorded the following charges and credits during 2020, all of which are classified in Impairments & other Consolidated Statement of Loss (Stated in millions) Pretax Tax Net First quarter: Goodwill $ 3,070 $ - $ 3,070 Intangible asset impairments 3,321 (815 ) 2,506 Asset Performance Solutions investments 1,264 4 1,268 North America pressure pumping impairment 587 (133 ) 454 Workforce reductions 202 (7 ) 195 Other 79 (9 ) 70 Valuation allowance - 164 164 Second quarter: Workforce reductions 1,021 (71 ) 950 Asset Performance Solutions investments 730 (15 ) 715 Fixed asset impairments 666 (52 ) 614 Inventory write-downs 603 (49 ) 554 Right-of-use asset impairments 311 (67 ) 244 Costs associated with exiting certain activities 205 25 230 Multiclient seismic data impairment 156 (2 ) 154 Repurchase of bonds 40 (2 ) 38 Postretirement benefits curtailment gain (69 ) 16 (53 ) Other 60 (4 ) 56 Third quarter: Facility exit charges 254 (39 ) 215 Workforce reductions 63 - 63 Other 33 (1 ) 32 $ 12,596 $ (1,057 ) $ 11,539 First quarter 2020: • Geopolitical events that increased the supply of low-priced oil to the global market occurred at the same time that demand weakened due to the worldwide effects of the COVID-19 pandemic, leading to a collapse in oil prices during March 2020. As a result, Schlumberger’s market capitalization deteriorated significantly compared to the end of 2019. Schlumberger’s stock price reached a low during the first quarter of 2020 not seen since 1995. Additionally, the Philadelphia Oil Services Sector index, which is comprised of companies involved in the oil services sector, reached an all-time low. As a result of these facts, Schlumberger determined that it was more likely than not that the fair value of certain of its reporting units were less than their carrying value. Therefore, Schlumberger performed an interim goodwill impairment test. Schlumberger had 11 reporting units with goodwill balances aggregating $16.0 billion. Schlumberger determined that the fair value of four of its reporting units, representing $4.5 billion of the goodwill, was substantially in excess of their carrying value. Schlumberger performed a detailed quantitative impairment assessment of the remaining seven reporting units, which represented $11.5 billion of goodwill. As a result of this assessment, Schlumberger concluded that the goodwill associated with each of these seven reporting units was impaired, resulting in a $3.1 billion goodwill impairment charge. This charge primarily relates to goodwill associated with the Drilling and Production segments. Following the $3.1 billion goodwill impairment charge relating to these seven reporting units, six of these reporting units had a remaining goodwill balance. These six reporting units had goodwill balances which ranged between $0.2 billion and $5.0 billion and aggregated to $8.4 billion as of March 31, 2020. Schlumberger used the income approach to estimate the fair value of its reporting units, but also considered the market approach to validate the results. The income approach estimates the fair value by discounting each reporting unit’s estimated future cash flows using Schlumberger’s estimate of the discount rate, or expected return, that a marketplace participant would have required as of the valuation date. The market approach includes the use of comparative multiples to corroborate the discounted cash flow results. The market approach involves significant judgement involved in the selection of the appropriate peer group companies and valuation multiples. Some of the more significant assumptions inherent in the income approach include the estimated future net annual cash flows for each reporting unit and the discount rate. Schlumberger selected the assumptions used in the discounted cash flow projections using historical data supplemented by current and anticipated market conditions and estimated growth rates. Schlumberger’s estimates are based upon assumptions believed to be reasonable. However, given the inherent uncertainty in determining the assumptions underlying a discounted cash flow analysis, particularly in the current volatile market, actual results may differ from those used in Schlumberger’s valuations which could result in additional impairment charges in the future. The discount rates utilized to value Schlumberger’s reporting units were between 12.0% and 13.5%, depending on the risks and uncertainty inherent in the respective reporting unit as well as the size of the reporting unit. Assuming all other assumptions and inputs used in each of the respective discounted cash flow analysis were held constant, a 50-basis point increase or decrease in the discount rate assumptions would have changed the fair value of the seven reporting units, on average, by less than 5%. • The negative market indicators described above were triggering events that indicated that certain of Schlumberger’s long-lived intangible and tangible assets may have been impaired. Recoverability testing indicated that certain long-lived assets were impaired. The estimated fair value of these assets was determined to be below their carrying value. As a result, Schlumberger recorded the following impairment charges: - $3.3 billion relating to intangible assets, of which $2.2 billion relates to Schlumberger’s 2016 acquisition of Cameron International Corporation and $1.1 billion relates to Schlumberger’s 2010 acquisition of Smith International, Inc. Following this impairment charge, the carrying value of the impaired intangible assets was approximately $0.9 billion. - $1.3 billion relating to the carrying value of certain Asset Performance Solutions (“APS”) projects in North America. - $0.6 billion of fixed assets associated with the pressure pumping business in North America. • $202 million of severance. • $79 million of other restructuring charges, primarily consisting of the impairment of an equity method investment that was determined to be other-than-temporarily impaired. • $164 million relating to a valuation allowance against certain deferred tax assets. Second quarter 2020: • As previously noted, late in the first quarter of 2020 geopolitical events that increased the supply of low-priced oil to the global market occurred at the same time as demand weakened due to the worldwide effects of the COVID-19 pandemic, which led to a collapse in oil prices. As a result, the second quarter of 2020 was the most challenging quarter in decades. Schlumberger responded to these market conditions by taking actions to restructure its business and rationalize its asset base during the second quarter of 2020. These actions included reducing headcount, closing facilities and exiting business lines in certain countries. Additionally, due to the resulting activity decline, Schlumberger had assets that would no longer be utilized. As a consequence of these circumstances and decisions, Schlumberger recorded the following restructuring and asset impairment charges: - $1.021 billion of severance associated with reducing its workforce by more than 21,000 employees. - $730 million relating to the carrying value of certain APS projects in Latin America. - $666 million of fixed asset impairments primarily relating to equipment that would no longer be utilized and facilities it exited. - $603 million write-down of the carrying value of inventory to its net realizable value. - $311 million write-down of right-of-use assets under operating leases associated with leased facilities Schlumberger exited and excess equipment. - $205 million of costs associated with exiting certain activities. - $156 million impairment of certain multiclient seismic data. - $60 million of other costs, including a $42 million increase in the allowance for the doubtful accounts. • During the second quarter of 2020, Schlumberger repurchased certain Senior Notes (see Note 9 – Long-term Debt ), which resulted in a $40 million charge. • As a consequence of the workforce reductions described above, Schlumberger recorded a curtailment gain of $69 million relating to its US postretirement medical plan. See Note 13 – Pension and Other Postretirement Benefit Plans for further details. The fair value of the impaired intangible assets, fixed assets, APS investments, right-of-use assets and multiclient seismic data was estimated based on the present value of projected future cash flows that the underlying assets are expected to generate. Such estimates included unobservable inputs that required significant judgement. Third quarter 2020: • During the third quarter of 2020 Schlumberger recorded the following restructuring charges: - $254 million of facility exit charges as Schlumberger continued to rationalize its real estate footprint relating to both leased and owned facilities. - $63 million of severance. - $33 million of other charges. As market conditions evolve and Schlumberger continues to develop its strategy to deal with such conditions, it may result in further restructuring and/or impairment charges in future periods. 2019 In connection with the preparation of its third quarter 2019 financial statements, Schlumberger recorded the following charges, all of which are classified as Impairments & other Consolidated Statement of Loss (Stated in millions) Pretax Tax Net Goodwill $ 8,828 $ (43 ) $ 8,785 Intangible assets 1,085 (248 ) 837 North America pressure pumping 1,575 (344 ) 1,231 Other North America-related 310 (53 ) 257 Argentina 127 - 127 Equity-method investments 231 (12 ) 219 Asset Performance Solutions investments 294 - 294 Other 242 (13 ) 229 $ 12,692 $ (713 ) $ 11,979 • During August 2019, Schlumberger’s market capitalization deteriorated significantly compared to the end of the second quarter of 2019. Schlumberger’s stock price reached a low not seen since 2005. Additionally, the Philadelphia Oil Services Sector Index, which is comprised of companies involved in the oil services sector, reached an 18-year low. As a result of these facts, Schlumberger determined that it was more likely than not that the fair value of certain of its reporting units were less than their carrying value. Therefore, Schlumberger performed an interim goodwill impairment test as of August 31, 2019. As of August 31, 2019, Schlumberger had 17 reporting units with goodwill balances aggregating $25.0 billion. Schlumberger determined that the fair value of seven of its reporting units, representing approximately $13.8 billion of the goodwill, was substantially in excess of their carrying value. Schlumberger performed a detailed quantitative impairment assessment of the remaining 10 reporting units, which represented $11.2 billion of goodwill. As a result of this assessment, Schlumberger concluded that the goodwill associated with nine of the 10 reporting units was impaired, resulting in an $8.8 billion goodwill impairment charge. This charge primarily relates to Schlumberger’s Drilling and Cameron segments. Following the $8.8 billion goodwill impairment charge relating to these nine reporting units, only three had a remaining goodwill balance. These three reporting units had goodwill balances which ranged between $0.4 billion and $0.6 billion and aggregated to $1.5 billion as of August 31, 2019. The tenth reporting unit, which was determined not to be impaired, had $0.9 billion of goodwill. Schlumberger primarily used the income approach to estimate the fair value of its reporting units, but also considered the market approach to validate the results. The income approach estimates the fair value by discounting each reporting unit’s estimated future cash flows using Schlumberger’s estimate of the discount rate, or expected return, that a marketplace participant would have required as of the valuation date. The market approach includes the use of comparative multiples to corroborate the discounted cash flow results. The market approach involves significant judgement involved in the selection of the appropriate peer group companies and valuation multiples. Some of the more significant assumptions inherent in the income approach include the estimated future net annual cash flows for each reporting unit and the discount rate. Schlumberger selected the assumptions used in the discounted cash flow projections using historical data supplemented by current and anticipated market conditions and estimated growth rates. Schlumberger’s estimates are based upon assumptions believed to be reasonable. However, given the inherent uncertainty in determining the assumptions underlying a discounted cash flow analysis, actual results may differ from those used in Schlumberger’s valuations which could result in additional impairment charges in the future. The discount rates utilized to value Schlumberger’s reporting units were between 12.5% and 14.0%, depending on the risks and uncertainty inherent in the respective reporting unit. Assuming all other assumptions and inputs used in each of the respective discounted cash flow analysis were held constant, a 50 basis point increase in the discount rate assumption would have increased the goodwill impairment charge by approximately $0.3 billion. Conversely, assuming all other assumptions and inputs used in each of the respective discounted cash flow analysis were held constant, a 50 basis point decrease in the discount rate assumption would have decreased the goodwill impairment charge by approximately $0.4 billion. • The negative market indicators described above , combined with deteriorating market conditions in North America, as well as the results of the previously mentioned fair value determinations of certain of Schlumberger’s reporting units and the appointment of a new Chief Executive Officer (as described below), were all triggering events that indicated that certain of Schlumberger’s long-lived tangible and intangible assets may have be en impaired. Recoverability testing, which was performed as of August 31, 2019, indicated that long-lived assets associated with certain asset groups were impaired. The estimated fair value of these asset groups was determined to be below their carrying value. As a result, Schlumberger recorded the following impairment and related charges: - $1.085 billion of intangible assets, of which $842 million related to Schlumberger’s 2010 acquisition of Smith International, Inc. The remaining $243 million primarily related to other acquisitions in North America. - $1.575 billion of charges relating to Schlumberger’s pressure pumping business in North America. This amount consisted of $1.324 billion of pressure pumping equipment and related assets; $98 million of right-of-use assets under operating leases; $121 million relating to a supply contract; $19 million of inventory; and $13 million of severance. - $310 million of charges primarily relating to other businesses in North America, consisting of $230 million of fixed asset impairments, $70 million of inventory write-downs and $10 million of severance. • As a result of the ongoing economic challenges in Argentina, Schlumberger recorded $127 million of charges during the third quarter of 2019. This consisted of $72 million of asset impairments, a $26 million devaluation charge and $29 million of severance. • Schlumberger also recorded the following impairment and restructuring charges: - $231 million relating to certain equity method investments that were determined to be other-than-temporarily impaired. - $294 million impairment relating to the carrying value of certain smaller APS projects. - $242 million of restructuring charges consisting of: $62 million of severance; $57 million relating to the acceleration of stock-based compensation expense associated with certain individuals; $49 million of business divestiture costs; $29 million relating to the repurchase of certain Senior Notes (see Note 9 - Long-term Debt The fair value of certain of these impaired assets was estimated based on the present value of projected future cash flows that the underlying assets were expected to generate. Such estimates included unobservable inputs that required significant judgment. There were no charges or credits recorded during the first six months of 2019.

Loss Per Share

Loss Per Share	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Loss Per Share	3. Loss Per Share The following is a reconciliation from basic loss per share of Schlumberger to diluted loss per share of Schlumberger: (Stated in millions, except per share amounts) 2020 2019 Schlumberger Net Loss Average Shares Outstanding Loss per Share Schlumberger Net Loss Average Shares Outstanding Loss per Share Third Quarter Basic $ (82 ) 1,391 $ (0.06 ) $ (11,383 ) 1,385 $ (8.22 ) Unvested restricted stock - - - - Diluted $ (82 ) 1,391 $ (0.06 ) $ (11,383 ) 1,385 $ (8.22 ) 2020 2019 Schlumberger Net Loss Average Shares Outstanding Loss per Share Schlumberger Net Loss Average Shares Outstanding Loss per Share Nine Months Basic $ (10,892 ) $ 1,389 $ (7.84 ) $ (10,470 ) $ 1,385 $ (7.56 ) Unvested restricted stock - - - - Diluted $ (10,892 ) $ 1,389 $ (7.84 ) $ (10,470 ) $ 1,385 $ (7.56 ) The number of outstanding options to purchase shares of Schlumberger common stock that were not included in the computation of diluted loss per share, because to do so would have had an antidilutive effect, was as follows: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 Employee stock options 49 47 49 40 Unvested restricted stock 18 - 18 -

Inventories

Inventories	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Inventories	4. Inventories A summary of inventories, which are stated at the lower of average cost or net realizable value, is as follows: (Stated in millions) Sept. 30, Dec. 31, 2020 2019 Raw materials & field materials $ 1,609 $ 1,857 Work in progress 520 515 Finished goods 1,413 1,758 $ 3,542 $ 4,130

Fixed Assets

Fixed Assets	9 Months Ended
	Sep. 30, 2020
Property Plant And Equipment [Abstract]
Fixed Assets	5. Fixed Assets A summary of fixed assets follows: (Stated in millions) Sept. 30, Dec. 31, 2020 2019 Property, plant & equipment $ 32,128 $ 35,009 Less: Accumulated depreciation 24,732 25,739 $ 7,396 $ 9,270 Depreciation expense relating to fixed assets was as follows: (Stated in millions) 2020 2019 Third Quarter $ 385 $ 499 Nine Months $ 1,251 $ 1,525

Multiclient Seismic Data

Multiclient Seismic Data	9 Months Ended
	Sep. 30, 2020
Multiclient Seismic Data [Abstract]
Multiclient Seismic Data	6. Multiclient Seismic Data The change in the carrying amount of multiclient seismic data for the nine months ended September 30, 2020 was as follows: (Stated in millions) Balance at December 31, 2019 $ 568 Capitalized in period 86 Charged to expense (132 ) Impairments (See Note 2) (156 ) Other (22 ) $ 344

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	7. Goodwill The changes in the carrying amount of goodwill by segment were as follows: (Stated in millions) Reservoir Characterization Drilling Production Cameron Total Balance at December 31, 2019 $ 4,560 $ 7,092 $ 3,949 $ 441 $ 16,042 Impairment (See Note 2) - (1,659 ) (1,228 ) (183 ) (3,070 ) Impact of changes in exchange rates and other - 10 (17 ) 3 (4 ) Balance at September 30, 2020 $ 4,560 $ 5,443 $ 2,704 $ 261 $ 12,968

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	8. Intangible Assets The gross book value, accumulated amortization and net book value of intangible assets were as follows: (Stated in millions) Sept. 30, 2020 Dec. 31, 2019 Gross Accumulated Net Book Gross Accumulated Net Book Book Amortization Value Book Value Amortization Value Customer relationships $ 1,744 $ 467 $ 1,277 $ 3,779 $ 868 $ 2,911 Technology/technical know-how 1,290 467 823 2,498 779 1,719 Tradenames 767 157 610 1,885 264 1,621 Other 1,548 685 863 1,514 676 838 $ 5,349 $ 1,776 $ 3,573 $ 9,676 $ 2,587 $ 7,089 Amortization expense charged to income was as follows: (Stated in millions) 2020 2019 Third Quarter $ 79 $ 156 Nine Months $ 292 $ 480 Based on the net book value of intangible assets at September 30, 2020, amortization charged to income for the subsequent five years is estimated to be: fourth quarter of 2020—$81 million; 2021—$305 million; 2022—$298 million; 2023—$286 million; 2024—$259 million; and 2025—$252 million.

Long-term Debt

Long-term Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-term Debt	9. Long-term Debt A summary of Long-term Debt (Stated in millions) Sept. 30, Dec. 31, 2020 2019 3.65% Senior Notes due 2023 $ 1,496 $ 1,495 3.90% Senior Notes due 2028 1,449 1,444 1.375% Guaranteed Notes due 2026 1,163 - 2.00% Guaranteed Notes due 2032 1,163 - 0.25% Notes due 2027 1,058 550 0.50% Notes due 2031 1,058 544 2.65% Senior Notes due 2030 1,250 - 2.40% Senior Notes due 2022 999 998 4.00% Senior Notes due 2025 930 929 4.30% Senior Notes due 2029 845 845 3.75% Senior Notes due 2024 746 746 1.00% Guaranteed Notes due 2026 704 665 2.65% Senior Notes due 2022 598 598 0.00% Notes due 2024 588 551 1.40% Senior Notes due 2025 498 - 3.63% Senior Notes due 2022 295 294 7.00% Notes due 2038 206 208 5.95% Notes due 2041 114 114 5.13% Notes due 2043 99 99 4.00% Notes due 2023 80 81 3.70% Notes due 2024 55 55 3.30% Senior Notes due 2021 - 1,597 4.20% Senior Notes due 2021 - 600 Commercial paper borrowings 1,077 2,222 Other - 135 $ 16,471 $ 14,770 The estimated fair value of Schlumberger’s Long-term Debt, During the second quarter of 2020, Schlumberger entered into a €1.54 billion committed revolving credit facility. This one-year At September 30, 2020 At September 30, 2020, Schlumberger had separate committed credit facility agreements aggregating $8.06 billion with commercial banks, of which $6.98 billion was available and unused. These committed facilities support commercial paper programs in the United States and Europe, of which $1.81 billion matures in April 2021, $2.75 billion matures in February 2023, $2.0 billion matures in February 2025 and $1.5 billion matures in July 2025 Borrowings under the commercial paper programs at September 30, 2020 were $1.08 billion, all of which was classified in Long-term debt Consolidated Balance Sheet Long-term debt Consolidated Balance Sheet During the first quarter of 2020, Schlumberger issued €400 million of 0.25% Notes due 2027 and €400 million of 0.50% Notes due 2031. During the second quarter of 2020, Schlumberger issued €1.0 billion of 1.375% Guaranteed Notes due 2026, $900 million of 2.65% Senior Notes due 2030 and €1.0 billion of 2.00% Guaranteed Notes due 2032. During the second quarter of 2020, Schlumberger repurchased all $600 million of its 4.20% Senior Notes due 2021 and $935 million of its 3.30% Senior Notes due 2021. Schlumberger paid a premium of approximately $40 million in connection with these repurchases. This premium was classified in Impairments & other Consolidated Statement of Loss Charges and Credits During the second quarter of 2020, Schlumberger established a €5.0 billion Guaranteed Euro Medium Term Note program that provides for the issuance of various types of debt instruments such as fixed or floating rate notes in euro, US dollar or other currencies. At September 30, 2020, Schlumberger had not issued any debt under this program. During the third quarter of 2020, Schlumberger issued $500 million of 1.40% Senior Notes due 2025 and $350 million of 2.65% Senior Notes due 2030. During the third quarter of 2019, Schlumberger issued €500 million of 0.00% Notes due 2024, €500 million of 0.25% Notes due 2027 and €500 million of 0.50% Notes due 2031. In September 2019, Schlumberger repurchased $783 million of its 3.00% Senior Notes due 2020 and $321 million of its 3.625% Senior Notes due 2022. Schlumberger paid a premium of $29 million in connection with these repurchases. This premium was classified as Impairments & other Consolidated Statement of Loss Charges and Credits. In April 2019, Schlumberger completed a debt exchange offer, pursuant to which it issued $1.500 billion in principal of 3.90% Senior Notes due 2028 (the “New Notes”) in exchange for $401 million of 3.00% Senior Notes due 2020, $234 million of 3.63% Senior Notes due 2022 and $817 million of 4.00% Senior Notes due 2025. In connection with the exchange of principal, Schlumberger paid a premium of $48 million, substantially all of which was in the form of New Notes. This premium is being amortized as additional interest expense over the term of the New Notes . Schlumberger Limited fully and unconditionally guarantees the securities issued by certain of its subsidiaries, including securities issued by Schlumberger Investment SA and Schlumberger Finance Canada Ltd., both wholly-owned subsidiaries of Schlumberger.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	10. Derivative Instruments and Hedging Activities Schlumberger is exposed to market risks related to fluctuations in foreign currency exchange rates and interest rates. To mitigate these risks, Schlumberger utilizes derivative instruments. Schlumberger does not enter into derivative transactions for speculative purposes. Interest Rate Risk Schlumberger is subject to interest rate risk on its debt and its investment portfolio. Schlumberger maintains an interest rate risk management strategy that uses a mix of variable and fixed rate debt combined with its investment portfolio, to mitigate the exposure to changes in interest rates. At September 30, 2020, Schlumberger had fixed rate debt aggregating $16.6 billion and variable rate debt aggregating $1.2 billion. Foreign Currency Exchange Rate Risk As a multinational company, Schlumberger generates revenue in more than 120 countries. Schlumberger’s functional currency is primarily the US dollar. However, outside the United States, a significant portion of Schlumberger’s expenses are incurred in foreign currencies. Therefore, when the US dollar weakens (strengthens) in relation to the foreign currencies of the countries in which Schlumberger conducts business, the US dollar-reported expenses will increase (decrease). Schlumberger is exposed to risks on future cash flows to the extent that the local currency is not the functional currency and expenses denominated in local currency are not equal to revenues denominated in local currency. Schlumberger uses foreign currency forward contracts to provide a hedge against a portion of these cash flow risks. These contracts are accounted for as cash flow hedges, with the changes in the fair value of the hedge recorded on the Consolidated Balance Sheet Accumulated Other Comprehensive Loss. Accumulated Other Comprehensive Loss Schlumberger is also exposed to risks on future cash flows relating to certain of its fixed rate debt denominated in currencies other than the functional currency. Schlumberger uses cross-currency swaps to provide a hedge against these cash flow risks. During 2017, a Canadian-dollar functional currency subsidiary of Schlumberger issued $1.1 billion of US-dollar denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of $1.1 billion in order to hedge changes in the fair value of its $0.5 billion of 2.20% Senior Notes due 2020 and its $0.6 billion of 2.65% Senior Notes due 2022. These cross-currency swaps effectively convert the US-dollar denominated notes to Canadian-dollar denominated debt with fixed annual interest rates of 1.97% and 2.52%, respectively. During 2019, a US-dollar functional currency subsidiary of Schlumberger issued €1.5 billion of Euro-denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of €1.5 billion in order to hedge changes in the fair value of its €0.5 billion 0.00% Notes due 2024, €0.5 billion 0.25% Notes due 2027 and €0.5 billion 0.50% Notes due 2031. These cross-currency swaps effectively convert the Euro-denominated notes to US-dollar denominated debt with fixed annual interest rates of 2.29%, 2.51% and 2.76%, respectively. During the first quarter of 2020, a US-dollar functional currency subsidiary of Schlumberger issued €0.8 billion of Euro-denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of €0.8 billion in order to hedge changes in the fair value of its €0.4 billion of 0.25% Notes due 2027 and €0.4 billion of 0.50% Notes due 2031. These cross-currency swaps effectively convert the Euro-denominated notes to US-dollar denominated debt with fixed annual interest rates of 1.87% and 2.20%, respectively. During the second quarter of 2020, a US-dollar functional currency subsidiary of Schlumberger issued €2.0 billion of Euro-denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of €1.85 billion in order to hedge changes in the fair value of its €1.0 billion of 1.375% Guaranteed Notes due 2026 and €0.85 billion of 2.00% Guaranteed Notes due 2032. These cross-currency swaps effectively convert the swapped portion of the Euro-denominated notes to US-dollar denominated debt with fixed annual interest rates of 2.77% and 3.45%, respectively. Schlumberger hedged its exposure to currency fluctuations on the remaining €0.15 billion of Euro-denominated debt issued by using foreign currency forward contracts that are not designated as hedges for accounting purposes. During the third quarter of 2020, a Canadian dollar functional currency subsidiary of Schlumberger issued $0.5 billion of US dollar denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of $0.5 billion in order to hedge changes in the fair value of its $0.5 billion 1.40% Senior Notes due 2025. These cross-currency swaps effectively convert the US dollar notes to Canadian dollar denominated debt with a fixed annual interest rate of 1.73%. Schlumberger is exposed to changes in the fair value of assets and liabilities that are denominated in currencies other than the functional currency. While Schlumberger uses foreign currency forward contracts and foreign currency options to economically hedge this exposure as it relates to certain currencies, these contracts are not designated as hedges for accounting purposes. Instead, the fair value of the contracts is recorded on the Consolidated Balance Sheet, Consolidated Statement of Loss At September 30, 2020, contracts were outstanding for the US dollar equivalent of $10.9 billion in various foreign currencies, of which $6.7 billion relates to hedges of debt denominated in currencies other than the functional currency. At September 30, 2020, Schlumberger recognized a cumulative $218 million loss in Accumulated Other Comprehensive Loss The effect of derivative instruments designated as cash flow hedges, and those not designated as hedges, on the Consolidated Statement of Loss (Stated in millions) Gain (Loss) Recognized in Loss Third Quarter Nine Months 2020 2019 2020 2019 Consolidated Statement of Loss Classification Derivatives designated as cash flow hedges: Foreign exchange contracts $ (7 ) $ (3 ) $ (12 ) $ (7 ) Cost of services/sales Cross currency swaps 197 (2 ) 347 (40 ) Cost of services/sales $ 190 $ (5 ) $ 335 $ (47 ) Derivatives not designated as hedges: Foreign exchange contracts $ (14 ) $ - $ (12 ) $ (8 ) Cost of services/sales

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Contingencies	11. Contingencies Schlumberger is party to various legal proceedings from time to time. A liability is accrued when a loss is both probable and can be reasonably estimated. Management believes that the probability of a material loss with respect to any currently pending legal proceeding is remote. However, litigation is inherently uncertain and it is not possible to predict the ultimate disposition of any of these proceedings.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segment Information	12. Segment Information (Stated in millions) Third Quarter 2020 Third Quarter 2019 Income (Loss) Income (Loss) Before Before Revenue Taxes Revenue Taxes Reservoir Characterization $ 1,010 $ 169 $ 1,651 $ 360 Drilling 1,519 144 2,469 306 Production 1,801 227 3,153 288 Cameron 965 60 1,363 173 Eliminations & other (37 ) (25 ) (95 ) (31 ) 575 1,096 Corporate & other (1) (151 ) (231 ) Interest income (2) 3 7 Interest expense (3) (131 ) (151 ) Charges and credits (4) (350 ) (12,692 ) $ 5,258 $ (54 ) $ 8,541 $ (11,971 ) (1) Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. (2) Interest income excludes amounts which are included in the segments’ income ($- million in 2020; $1 million in 2019). (3) (4) Charges and Credits (Stated in millions) Nine Months 2020 Nine Months 2019 Income (Loss) Income (Loss) Before Before Revenue Taxes Revenue Taxes Reservoir Characterization $ 3,372 $ 538 $ 4,669 $ 959 Drilling 5,540 594 7,275 914 Production 6,119 464 9,120 740 Cameron 3,235 262 3,949 486 Eliminations & other (197 ) (111 ) (324 ) (127 ) 1,747 2,972 Corporate & other (1) (548 ) (742 ) Interest income (2) 25 25 Interest expense (3) (397 ) (433 ) Charges and credits (4) (12,596 ) (12,692 ) $ 18,069 $ (11,769 ) $ 24,689 $ (10,870 ) Certain prior period amounts have been reclassified to conform to the current period presentation. (1) Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. (2) Interest income excludes amounts which are included in the segments’ income ($1 million in 2020; $6 million in 2019). (3) (4) Charges and Credits Revenue by geographic area was as follows: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 North America $ 1,157 $ 2,850 $ 4,620 $ 8,389 Latin America 707 1,014 2,195 3,121 Europe/CIS/Africa 1,397 2,062 4,597 5,665 Middle East & Asia 1,987 2,553 6,559 7,343 Eliminations & other 10 62 98 171 $ 5,258 $ 8,541 $ 18,069 $ 24,689 North America and International revenue disaggregated by segment was as follows: (Stated in millions) Third Quarter 2020 North Eliminations America International & other Total Reservoir Characterization $ 143 $ 863 $ 4 $ 1,010 Drilling 226 1,265 28 1,519 Production 462 1,338 1 1,801 Cameron 326 646 (7 ) 965 Other - (21 ) (16 ) (37 ) $ 1,157 $ 4,091 $ 10 $ 5,258 Third Quarter 2019 North Eliminations America International & other Total Reservoir Characterization $ 299 $ 1,347 $ 5 $ 1,651 Drilling 552 1,861 56 2,469 Production 1,426 1,726 1 3,153 Cameron 589 772 2 1,363 Other (16 ) (77 ) (2 ) (95 ) $ 2,850 $ 5,629 $ 62 $ 8,541 (Stated in millions) Nine Months 2020 North Eliminations America International & other Total Reservoir Characterization $ 508 $ 2,851 $ 13 $ 3,372 Drilling 1,018 4,404 118 5,540 Production 1,937 4,180 2 6,119 Cameron 1,173 2,048 14 3,235 Other (16 ) (132 ) (49 ) (197 ) $ 4,620 $ 13,351 $ 98 $ 18,069 Nine Months 2019 North Eliminations America International & other Total Reservoir Characterization $ 756 $ 3,898 $ 15 $ 4,669 Drilling 1,680 5,435 160 7,275 Production 4,218 4,900 2 9,120 Cameron 1,771 2,146 32 3,949 Other (36 ) (250 ) (38 ) (324 ) $ 8,389 $ 16,129 $ 171 $ 24,689 Revenue in excess of billings related to contracts where revenue is recognized over time was $0.2 billion at both September 30, 2020 and December 31, 2019. Such amounts are included within Receivables less allowance for doubtful accounts Consolidated Balance Sheet Due to the nature of its business, Schlumberger does not have significant backlog. Total backlog was $2.7 billion at September 30, 2020, of which approximately 65% is expected to be recognized as revenue over the next 12 months. Billings and cash collections in excess of revenue was $1.0 billion at September 30, 2020 and $0.9 billion at December 31, 2019. Such amounts are included within Accounts payable and accrued liabilities Consolidated Balance Sheet

Pension and Other Postretiremen

Pension and Other Postretirement Benefit Plans	9 Months Ended
	Sep. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefit Plans	13. Pension and Other Postretirement Benefit Plans Net pension cost (credit) for the Schlumberger pension plans included the following components: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 US Int’l US Int’l US Int’l US Int’l Service cost $ 10 $ 31 $ 14 $ 32 $ 41 $ 105 $ 41 $ 96 Interest cost 36 76 45 82 111 226 136 248 Expected return on plan assets (58 ) (148 ) (58 ) (148 ) (175 ) (443 ) (173 ) (446 ) Amortization of prior service cost 2 - 3 2 6 - 7 6 Amortization of net loss 9 39 7 16 31 119 23 47 $ (1 ) $ (2 ) $ 11 $ (16 ) $ 14 $ 7 $ 34 $ (49 ) The net periodic benefit credit for the Schlumberger US postretirement medical plan included the following components: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 Service cost $ 5 $ 8 $ 23 $ 23 Interest cost 7 12 27 36 Expected return on plan assets (19 ) (16 ) (52 ) (49 ) Amortization of prior service credit (4 ) (7 ) (19 ) (21 ) Curtailment gain - - (69 ) - $ (11 ) $ (3 ) $ (90 ) $ (11 ) Due to the actions taken by Schlumberger to reduce its global workforce during 2020, Schlumberger experienced a significant reduction in the expected aggregate years of future service of its employees in its US postretirement medical plan. Accordingly, Schlumberger recorded a curtailment gain of $69 million during the second quarter of 2020 relating to this plan. The curtailment gain includes recognition of the decrease in the benefit obligation as well as a portion of the previously unrecognized prior service credit, reflecting the reduction in expected years of future service. As a result of the curtailment, Schlumberger performed a remeasurement of the plan, which had an immaterial impact. This gain was classified in Impairments & other Consolidated Statement of Loss Charges and Credits

Charges and Credits (Tables)

Charges and Credits (Tables)	9 Months Ended
	Sep. 30, 2020
Restructuring And Related Activities [Abstract]
Summary of Charges and Credits	Schlumberger recorded the following charges and credits during 2020, all of which are classified in Impairments & other Consolidated Statement of Loss (Stated in millions) Pretax Tax Net First quarter: Goodwill $ 3,070 $ - $ 3,070 Intangible asset impairments 3,321 (815 ) 2,506 Asset Performance Solutions investments 1,264 4 1,268 North America pressure pumping impairment 587 (133 ) 454 Workforce reductions 202 (7 ) 195 Other 79 (9 ) 70 Valuation allowance - 164 164 Second quarter: Workforce reductions 1,021 (71 ) 950 Asset Performance Solutions investments 730 (15 ) 715 Fixed asset impairments 666 (52 ) 614 Inventory write-downs 603 (49 ) 554 Right-of-use asset impairments 311 (67 ) 244 Costs associated with exiting certain activities 205 25 230 Multiclient seismic data impairment 156 (2 ) 154 Repurchase of bonds 40 (2 ) 38 Postretirement benefits curtailment gain (69 ) 16 (53 ) Other 60 (4 ) 56 Third quarter: Facility exit charges 254 (39 ) 215 Workforce reductions 63 - 63 Other 33 (1 ) 32 $ 12,596 $ (1,057 ) $ 11,539 In connection with the preparation of its third quarter 2019 financial statements, Schlumberger recorded the following charges, all of which are classified as Impairments & other Consolidated Statement of Loss (Stated in millions) Pretax Tax Net Goodwill $ 8,828 $ (43 ) $ 8,785 Intangible assets 1,085 (248 ) 837 North America pressure pumping 1,575 (344 ) 1,231 Other North America-related 310 (53 ) 257 Argentina 127 - 127 Equity-method investments 231 (12 ) 219 Asset Performance Solutions investments 294 - 294 Other 242 (13 ) 229 $ 12,692 $ (713 ) $ 11,979

Loss Per Share (Tables)

Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Reconciliation of Loss Per Share	The following is a reconciliation from basic loss per share of Schlumberger to diluted loss per share of Schlumberger: (Stated in millions, except per share amounts) 2020 2019 Schlumberger Net Loss Average Shares Outstanding Loss per Share Schlumberger Net Loss Average Shares Outstanding Loss per Share Third Quarter Basic $ (82 ) 1,391 $ (0.06 ) $ (11,383 ) 1,385 $ (8.22 ) Unvested restricted stock - - - - Diluted $ (82 ) 1,391 $ (0.06 ) $ (11,383 ) 1,385 $ (8.22 ) 2020 2019 Schlumberger Net Loss Average Shares Outstanding Loss per Share Schlumberger Net Loss Average Shares Outstanding Loss per Share Nine Months Basic $ (10,892 ) $ 1,389 $ (7.84 ) $ (10,470 ) $ 1,385 $ (7.56 ) Unvested restricted stock - - - - Diluted $ (10,892 ) $ 1,389 $ (7.84 ) $ (10,470 ) $ 1,385 $ (7.56 )
Schedule of Antidilutive Securities Excluded from Computation of Loss Per Share	The number of outstanding options to purchase shares of Schlumberger common stock that were not included in the computation of diluted loss per share, because to do so would have had an antidilutive effect, was as follows: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 Employee stock options 49 47 49 40 Unvested restricted stock 18 - 18 -

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Summary of Inventory	A summary of inventories, which are stated at the lower of average cost or net realizable value, is as follows: (Stated in millions) Sept. 30, Dec. 31, 2020 2019 Raw materials & field materials $ 1,609 $ 1,857 Work in progress 520 515 Finished goods 1,413 1,758 $ 3,542 $ 4,130

Fixed Assets (Tables)

Fixed Assets (Tables)	9 Months Ended
	Sep. 30, 2020
Property Plant And Equipment [Abstract]
Summary of Fixed Assets	A summary of fixed assets follows: (Stated in millions) Sept. 30, Dec. 31, 2020 2019 Property, plant & equipment $ 32,128 $ 35,009 Less: Accumulated depreciation 24,732 25,739 $ 7,396 $ 9,270
Depreciation Expense Relating to Fixed Assets	Depreciation expense relating to fixed assets was as follows: (Stated in millions) 2020 2019 Third Quarter $ 385 $ 499 Nine Months $ 1,251 $ 1,525

Multiclient Seismic Data (Table

Multiclient Seismic Data (Tables)	9 Months Ended
	Sep. 30, 2020
Multiclient Seismic Data [Abstract]
Change in Carrying Amount of Multiclient Seismic Data	The change in the carrying amount of multiclient seismic data for the nine months ended September 30, 2020 was as follows: (Stated in millions) Balance at December 31, 2019 $ 568 Capitalized in period 86 Charged to expense (132 ) Impairments (See Note 2) (156 ) Other (22 ) $ 344

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill by segment were as follows: (Stated in millions) Reservoir Characterization Drilling Production Cameron Total Balance at December 31, 2019 $ 4,560 $ 7,092 $ 3,949 $ 441 $ 16,042 Impairment (See Note 2) - (1,659 ) (1,228 ) (183 ) (3,070 ) Impact of changes in exchange rates and other - 10 (17 ) 3 (4 ) Balance at September 30, 2020 $ 4,560 $ 5,443 $ 2,704 $ 261 $ 12,968

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets by Major Class	The gross book value, accumulated amortization and net book value of intangible assets were as follows: (Stated in millions) Sept. 30, 2020 Dec. 31, 2019 Gross Accumulated Net Book Gross Accumulated Net Book Book Amortization Value Book Value Amortization Value Customer relationships $ 1,744 $ 467 $ 1,277 $ 3,779 $ 868 $ 2,911 Technology/technical know-how 1,290 467 823 2,498 779 1,719 Tradenames 767 157 610 1,885 264 1,621 Other 1,548 685 863 1,514 676 838 $ 5,349 $ 1,776 $ 3,573 $ 9,676 $ 2,587 $ 7,089
Amortization Expense Charged to Income for Intangible Assets	(Stated in millions) 2020 2019 Third Quarter $ 79 $ 156 Nine Months $ 292 $ 480

Long-term Debt (Tables)

Long-term Debt (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Summary of Long-term Debt	A summary of Long-term Debt (Stated in millions) Sept. 30, Dec. 31, 2020 2019 3.65% Senior Notes due 2023 $ 1,496 $ 1,495 3.90% Senior Notes due 2028 1,449 1,444 1.375% Guaranteed Notes due 2026 1,163 - 2.00% Guaranteed Notes due 2032 1,163 - 0.25% Notes due 2027 1,058 550 0.50% Notes due 2031 1,058 544 2.65% Senior Notes due 2030 1,250 - 2.40% Senior Notes due 2022 999 998 4.00% Senior Notes due 2025 930 929 4.30% Senior Notes due 2029 845 845 3.75% Senior Notes due 2024 746 746 1.00% Guaranteed Notes due 2026 704 665 2.65% Senior Notes due 2022 598 598 0.00% Notes due 2024 588 551 1.40% Senior Notes due 2025 498 - 3.63% Senior Notes due 2022 295 294 7.00% Notes due 2038 206 208 5.95% Notes due 2041 114 114 5.13% Notes due 2043 99 99 4.00% Notes due 2023 80 81 3.70% Notes due 2024 55 55 3.30% Senior Notes due 2021 - 1,597 4.20% Senior Notes due 2021 - 600 Commercial paper borrowings 1,077 2,222 Other - 135 $ 16,471 $ 14,770

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Effect of Derivative Instruments Designated as Cash Flow Hedges and Not Designated as Hedges on Consolidated Statement of (Loss) Income	The effect of derivative instruments designated as cash flow hedges, and those not designated as hedges, on the Consolidated Statement of Loss (Stated in millions) Gain (Loss) Recognized in Loss Third Quarter Nine Months 2020 2019 2020 2019 Consolidated Statement of Loss Classification Derivatives designated as cash flow hedges: Foreign exchange contracts $ (7 ) $ (3 ) $ (12 ) $ (7 ) Cost of services/sales Cross currency swaps 197 (2 ) 347 (40 ) Cost of services/sales $ 190 $ (5 ) $ 335 $ (47 ) Derivatives not designated as hedges: Foreign exchange contracts $ (14 ) $ - $ (12 ) $ (8 ) Cost of services/sales

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	(Stated in millions) Third Quarter 2020 Third Quarter 2019 Income (Loss) Income (Loss) Before Before Revenue Taxes Revenue Taxes Reservoir Characterization $ 1,010 $ 169 $ 1,651 $ 360 Drilling 1,519 144 2,469 306 Production 1,801 227 3,153 288 Cameron 965 60 1,363 173 Eliminations & other (37 ) (25 ) (95 ) (31 ) 575 1,096 Corporate & other (1) (151 ) (231 ) Interest income (2) 3 7 Interest expense (3) (131 ) (151 ) Charges and credits (4) (350 ) (12,692 ) $ 5,258 $ (54 ) $ 8,541 $ (11,971 ) (1) Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. (2) Interest income excludes amounts which are included in the segments’ income ($- million in 2020; $1 million in 2019). (3) (4) Charges and Credits (Stated in millions) Nine Months 2020 Nine Months 2019 Income (Loss) Income (Loss) Before Before Revenue Taxes Revenue Taxes Reservoir Characterization $ 3,372 $ 538 $ 4,669 $ 959 Drilling 5,540 594 7,275 914 Production 6,119 464 9,120 740 Cameron 3,235 262 3,949 486 Eliminations & other (197 ) (111 ) (324 ) (127 ) 1,747 2,972 Corporate & other (1) (548 ) (742 ) Interest income (2) 25 25 Interest expense (3) (397 ) (433 ) Charges and credits (4) (12,596 ) (12,692 ) $ 18,069 $ (11,769 ) $ 24,689 $ (10,870 ) Certain prior period amounts have been reclassified to conform to the current period presentation. (1) Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. (2) Interest income excludes amounts which are included in the segments’ income ($1 million in 2020; $6 million in 2019). (3) (4) Charges and Credits
Revenue by Geographic Area	Revenue by geographic area was as follows: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 North America $ 1,157 $ 2,850 $ 4,620 $ 8,389 Latin America 707 1,014 2,195 3,121 Europe/CIS/Africa 1,397 2,062 4,597 5,665 Middle East & Asia 1,987 2,553 6,559 7,343 Eliminations & other 10 62 98 171 $ 5,258 $ 8,541 $ 18,069 $ 24,689
Summary of North America and International Revenue Disaggregated by Segment	North America and International revenue disaggregated by segment was as follows: (Stated in millions) Third Quarter 2020 North Eliminations America International & other Total Reservoir Characterization $ 143 $ 863 $ 4 $ 1,010 Drilling 226 1,265 28 1,519 Production 462 1,338 1 1,801 Cameron 326 646 (7 ) 965 Other - (21 ) (16 ) (37 ) $ 1,157 $ 4,091 $ 10 $ 5,258 Third Quarter 2019 North Eliminations America International & other Total Reservoir Characterization $ 299 $ 1,347 $ 5 $ 1,651 Drilling 552 1,861 56 2,469 Production 1,426 1,726 1 3,153 Cameron 589 772 2 1,363 Other (16 ) (77 ) (2 ) (95 ) $ 2,850 $ 5,629 $ 62 $ 8,541 (Stated in millions) Nine Months 2020 North Eliminations America International & other Total Reservoir Characterization $ 508 $ 2,851 $ 13 $ 3,372 Drilling 1,018 4,404 118 5,540 Production 1,937 4,180 2 6,119 Cameron 1,173 2,048 14 3,235 Other (16 ) (132 ) (49 ) (197 ) $ 4,620 $ 13,351 $ 98 $ 18,069 Nine Months 2019 North Eliminations America International & other Total Reservoir Characterization $ 756 $ 3,898 $ 15 $ 4,669 Drilling 1,680 5,435 160 7,275 Production 4,218 4,900 2 9,120 Cameron 1,771 2,146 32 3,949 Other (36 ) (250 ) (38 ) (324 ) $ 8,389 $ 16,129 $ 171 $ 24,689

Pension and Other Postretirem_2

Pension and Other Postretirement Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Net Pension Cost (Credit) for Schlumberger Pension Plans and US Postretirement Medical Plan	Net pension cost (credit) for the Schlumberger pension plans included the following components: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 US Int’l US Int’l US Int’l US Int’l Service cost $ 10 $ 31 $ 14 $ 32 $ 41 $ 105 $ 41 $ 96 Interest cost 36 76 45 82 111 226 136 248 Expected return on plan assets (58 ) (148 ) (58 ) (148 ) (175 ) (443 ) (173 ) (446 ) Amortization of prior service cost 2 - 3 2 6 - 7 6 Amortization of net loss 9 39 7 16 31 119 23 47 $ (1 ) $ (2 ) $ 11 $ (16 ) $ 14 $ 7 $ 34 $ (49 ) The net periodic benefit credit for the Schlumberger US postretirement medical plan included the following components: (Stated in millions) Third Quarter Nine Months 2020 2019 2020 2019 Service cost $ 5 $ 8 $ 23 $ 23 Interest cost 7 12 27 36 Expected return on plan assets (19 ) (16 ) (52 ) (49 ) Amortization of prior service credit (4 ) (7 ) (19 ) (21 ) Curtailment gain - - (69 ) - $ (11 ) $ (3 ) $ (90 ) $ (11 )

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - Schlumberger and Liberty Oilfield Services Inc Agreement - OneStim - Revenue	9 Months Ended
	Sep. 30, 2020	Aug. 31, 2020
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Percentage of ownership interest		37.00%
Concentration risk, percentage	5.00%

Charges and Credits - Summary o

Charges and Credits - Summary of Charges and Credits (Detail) - USD ($)	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2020
Charges And Credits [Line Items]
Charges and credits, Pretax				$ 12,692,000,000
Charges and credits, Tax				(713,000,000)
Charges and credits, Net				11,979,000,000	$ 0
Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		$ 40,000,000	$ 3,321,000,000			$ 12,596,000,000
Charges and credits, Tax		(2,000,000)	(815,000,000)			(1,057,000,000)
Charges and credits, Net		38,000,000	2,506,000,000			$ 11,539,000,000
Goodwill | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax			3,070,000,000	8,828,000,000
Charges and credits, Tax				(43,000,000)
Charges and credits, Net			3,070,000,000	8,785,000,000
Asset Performance Solutions Investments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		730,000,000	1,264,000,000	294,000,000
Charges and credits, Tax		(15,000,000)	4,000,000
Charges and credits, Net		715,000,000	1,268,000,000	294,000,000
North America pressure pumping asset impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax			587,000,000	1,575,000,000
Charges and credits, Tax			(133,000,000)	(344,000,000)
Charges and credits, Net			454,000,000	1,231,000,000
Workforce reductions | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax	$ 63,000,000	1,021,000,000	202,000,000
Charges and credits, Tax		(71,000,000)	(7,000,000)
Charges and credits, Net	63,000,000	950,000,000	195,000,000
Other | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax	33,000,000	60,000,000	79,000,000	242,000,000
Charges and credits, Tax	(1,000,000)	(4,000,000)	(9,000,000)	(13,000,000)
Charges and credits, Net	32,000,000	56,000,000	70,000,000	229,000,000
Valuation allowance | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Tax			164,000,000
Charges and credits, Net			$ 164,000,000
Fixed Asset Impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		666,000,000
Charges and credits, Tax		(52,000,000)
Charges and credits, Net		614,000,000
Inventory Write Down | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		603,000,000
Charges and credits, Tax		(49,000,000)
Charges and credits, Net		554,000,000
Right-of-use Asset Impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		311,000,000
Charges and credits, Tax		(67,000,000)
Charges and credits, Net		244,000,000
Costs Associated With Exiting Certain Activities | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		205,000,000
Charges and credits, Tax		25,000,000
Charges and credits, Net		230,000,000
Multiclient Seismic Data Impairment | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		156,000,000
Charges and credits, Tax		(2,000,000)
Charges and credits, Net		154,000,000
Postretirement Benefits Curtailment Gain | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax		(69,000,000)
Charges and credits, Tax		16,000,000
Charges and credits, Net		$ (53,000,000)
Facility exit charges | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax	254,000,000
Charges and credits, Tax	(39,000,000)
Charges and credits, Net	$ 215,000,000
Intangible Assets | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax				1,085,000,000
Charges and credits, Tax				(248,000,000)
Charges and credits, Net				837,000,000
Other North America - Related | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax				310,000,000
Charges and credits, Tax				(53,000,000)
Charges and credits, Net				257,000,000
Argentina | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax				127,000,000
Charges and credits, Net				127,000,000
Equity Method Investment, Other Than Temporary Impairment | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax				231,000,000
Charges and credits, Tax				(12,000,000)
Charges and credits, Net				$ 219,000,000

Charges and Credits - Additiona

Charges and Credits - Additional Information (Detail)	Aug. 31, 2019USD ($)Unit	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)Emp	Mar. 31, 2020USD ($)Unit	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Charges And Credits [Line Items]
Total number of reporting units | Unit	17			11
Goodwill				$ 16,000,000,000
Goodwill impairment charge				$ 3,100,000,000
Goodwill	$ 25,000,000,000	$ 12,968,000,000						$ 16,042,000,000
Expected increase/decrease in discount rate assumption				0.50%
Number of reporting units fair value to be impacted | Unit				7
Intangible assets	1,085,000,000			$ 3,300,000,000
Restructuring and asset impairment charges			$ 40,000,000
Expected increase in discount rate assumption					0.50%
Increase in goodwill impairment charge					$ 300,000,000
Expected decrease in discount rate assumption					0.50%
Decrease in goodwill impairment charge					$ 400,000,000
Charges And Credits					11,979,000,000	$ 0
North America
Charges And Credits [Line Items]
Intangible assets	243,000,000
Carrying Value Of Impaired Intangible Asset
Charges And Credits [Line Items]
Intangible assets				900,000,000
Carrying Value Of Impaired Intangible Asset | North America
Charges And Credits [Line Items]
Intangible assets				1,300,000,000
North America pressure pumping asset impairments | North America
Charges And Credits [Line Items]
Intangible assets	1,575,000,000			600,000,000
Severance
Charges And Credits [Line Items]
Intangible assets	13,000,000			202,000,000			$ 62,000,000
Severance | North America
Charges And Credits [Line Items]
Intangible assets	10,000,000
Severance | Argentina
Charges And Credits [Line Items]
Intangible assets					29,000,000
Other Restructuring
Charges And Credits [Line Items]
Intangible assets				79,000,000			45,000,000
Valuation allowance | North America
Charges And Credits [Line Items]
Intangible assets				164,000,000
Asset Performance Solutions Investments | Latin America
Charges And Credits [Line Items]
Restructuring and asset impairment charges			730,000,000
Fixed Asset Impairments
Charges And Credits [Line Items]
Restructuring and asset impairment charges			666,000,000
Fixed Asset Impairments | North America
Charges And Credits [Line Items]
Intangible assets	230,000,000
Inventory Write Down
Charges And Credits [Line Items]
Restructuring and asset impairment charges			603,000,000
Inventory Write Down | North America
Charges And Credits [Line Items]
Intangible assets	70,000,000
Right-of-use Asset Impairments
Charges And Credits [Line Items]
Restructuring and asset impairment charges			311,000,000
Costs Associated With Exiting Certain Activities
Charges And Credits [Line Items]
Restructuring and asset impairment charges			205,000,000
Multiclient Seismic Data Impairment
Charges And Credits [Line Items]
Restructuring and asset impairment charges			156,000,000
Allowance For Doubtful Accounts
Charges And Credits [Line Items]
Restructuring and asset impairment charges			42,000,000
Postretirement Benefits Curtailment Gain
Charges And Credits [Line Items]
Restructuring and asset impairment charges			69,000,000
Facility Exit Costs
Charges And Credits [Line Items]
Restructuring charges		254,000,000
Workforce reductions
Charges And Credits [Line Items]
Restructuring and asset impairment charges			$ 1,021,000,000
Reduction in workforce | Emp			21,000
Restructuring charges		63,000,000
Other
Charges And Credits [Line Items]
Restructuring and asset impairment charges			$ 60,000,000
Restructuring charges		$ 33,000,000
Charges of Pressure Pumping Equipment
Charges And Credits [Line Items]
Intangible assets	1,324,000,000
Operating Lease Right-of-use Asset
Charges And Credits [Line Items]
Intangible assets	98,000,000
Supplies Expense
Charges And Credits [Line Items]
Intangible assets	121,000,000
Inventory Charges
Charges And Credits [Line Items]
Intangible assets	19,000,000
Charges Related to Other Businesses | North America
Charges And Credits [Line Items]
Intangible assets	310,000,000
Production Related Impairment or Charges | Argentina
Charges And Credits [Line Items]
Intangible assets					127,000,000
Asset Impairment Charges | Argentina
Charges And Credits [Line Items]
Intangible assets					72,000,000
Devaluation Charge | Argentina
Charges And Credits [Line Items]
Intangible assets					$ 26,000,000
Equity Method Investment, Other Than Temporary Impairment
Charges And Credits [Line Items]
Intangible assets							231,000,000
Carrying Value of APS
Charges And Credits [Line Items]
Intangible assets							294,000,000
Restructuring Charges
Charges And Credits [Line Items]
Intangible assets							242,000,000
Acceleration of Stock-based Compensation Expense Associated With Certain Individuals
Charges And Credits [Line Items]
Intangible assets							57,000,000
Business Divestiture Costs
Charges And Credits [Line Items]
Intangible assets							49,000,000
Debt Instrument Premium Paid on Repurchase
Charges And Credits [Line Items]
Intangible assets							$ 29,000,000
Cameron
Charges And Credits [Line Items]
Intangible assets				2,200,000,000
Smith International Inc Smith Aand Geoservices
Charges And Credits [Line Items]
Intangible assets	$ 842,000,000			$ 1,100,000,000
Minimum
Charges And Credits [Line Items]
Discount rate utilized				12.00%	12.50%
Maximum
Charges And Credits [Line Items]
Discount rate utilized				13.50%	14.00%
Expected percentage change in fair value of reporting units				5.00%
Four Reporting Units [Member]
Charges And Credits [Line Items]
Total number of reporting units | Unit				4
Goodwill				$ 4,500,000,000
Seven Reporting Units [Member]
Charges And Credits [Line Items]
Total number of reporting units | Unit	7			7
Goodwill				$ 11,500,000,000
Goodwill	$ 13,800,000,000
Six Reporting Units
Charges And Credits [Line Items]
Total number of reporting units | Unit				6
Goodwill				$ 8,400,000,000
Six Reporting Units | Minimum
Charges And Credits [Line Items]
Goodwill				200,000,000
Six Reporting Units | Maximum
Charges And Credits [Line Items]
Goodwill				$ 5,000,000,000
Ten Reporting Units
Charges And Credits [Line Items]
Total number of reporting units | Unit	10
Goodwill	$ 11,200,000,000
Nine Reporting Units
Charges And Credits [Line Items]
Total number of reporting units | Unit	9
Goodwill impairment charge	$ 8,800,000,000
Three Reporting Units
Charges And Credits [Line Items]
Total number of reporting units | Unit	3
Goodwill	$ 1,500,000,000
Three Reporting Units | Minimum
Charges And Credits [Line Items]
Goodwill	400,000,000
Three Reporting Units | Maximum
Charges And Credits [Line Items]
Goodwill	$ 600,000,000
Tenth Reporting Unit
Charges And Credits [Line Items]
Total number of reporting units | Unit	10
Goodwill	$ 900,000,000

Loss Per Share - Reconciliation

Loss Per Share - Reconciliation of Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Schlumberger Net Income (Loss)
Basic	$ (82)	$ (11,383)	$ (10,892)	$ (10,470)
Diluted	$ (82)	$ (11,383)	$ (10,892)	$ (10,470)
Average Shares Outstanding
Basic	1,391	1,385	1,389	1,385
Diluted	1,391	1,385	1,389	1,385
Earnings (loss) per Share
Basic	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)
Diluted	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)

Loss Per Share - Schedule of An

Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Loss Per Share (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Employee Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	49	47	49	40
Unvested Restricted Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	18		18

Inventories - Summary of Invent

Inventories - Summary of Inventory (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials & field materials	$ 1,609	$ 1,857
Work in progress	520	515
Finished goods	1,413	1,758
Inventories	$ 3,542	$ 4,130

Fixed Assets - Summary of Fixed

Fixed Assets - Summary of Fixed Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Property Plant And Equipment [Abstract]
Property, plant & equipment	$ 32,128	$ 35,009
Less: Accumulated depreciation	24,732	25,739
Fixed assets less accumulated depreciation	$ 7,396	$ 9,270

Fixed Assets - Depreciation Exp

Fixed Assets - Depreciation Expense Relating to Fixed Assets (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Property Plant And Equipment [Abstract]
Depreciation expense relating to fixed assets	$ 385	$ 499	$ 1,251	$ 1,525

Multiclient Seismic Data - Chan

Multiclient Seismic Data - Change in Carrying Amount of Multiclient Seismic Data (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Multiclient Seismic Data [Abstract]
Opening balance	$ 568
Capitalized in period	86
Charged to expense	(132)
Impairments (See Note 2)	(156)
Other	(22)
Ending balance	$ 344

Goodwill - Changes in Carrying

Goodwill - Changes in Carrying Amount of Goodwill (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 16,042
Impairment (See Note 2)	(3,070)
Impact of changes in exchange rates and other	(4)
Goodwill, Ending Balance	12,968
Cameron
Goodwill [Line Items]
Goodwill, Beginning Balance	441
Impairment (See Note 2)	(183)
Impact of changes in exchange rates and other	3
Goodwill, Ending Balance	261
Operating Segments | Reservoir Characterization
Goodwill [Line Items]
Goodwill, Beginning Balance	4,560
Goodwill, Ending Balance	4,560
Operating Segments | Drilling
Goodwill [Line Items]
Goodwill, Beginning Balance	7,092
Impairment (See Note 2)	(1,659)
Impact of changes in exchange rates and other	10
Goodwill, Ending Balance	5,443
Operating Segments | Production
Goodwill [Line Items]
Goodwill, Beginning Balance	3,949
Impairment (See Note 2)	(1,228)
Impact of changes in exchange rates and other	(17)
Goodwill, Ending Balance	$ 2,704

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Gross Book Value	$ 5,349	$ 9,676
Accumulated Amortization	1,776	2,587
Net Book Value	3,573	7,089
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,744	3,779
Accumulated Amortization	467	868
Net Book Value	1,277	2,911
Technology/Technical Know-How
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,290	2,498
Accumulated Amortization	467	779
Net Book Value	823	1,719
Tradenames
Finite Lived Intangible Assets [Line Items]
Gross Book Value	767	1,885
Accumulated Amortization	157	264
Net Book Value	610	1,621
Other
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,548	1,514
Accumulated Amortization	685	676
Net Book Value	$ 863	$ 838

Intangible Assets - Amortizatio

Intangible Assets - Amortization Expense Charged to Income for Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense	$ 79	$ 156	$ 292	$ 480

Intangible Assets - Additional

Intangible Assets - Additional Information (Detail) $ in Millions	Sep. 30, 2020USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Estimated amortization charged to income, fourth quarter of 2020	$ 81
Estimated amortization charged to income, 2021	305
Estimated amortization charged to income, 2022	298
Estimated amortization charged to income, 2023	286
Estimated amortization charged to income, 2024	259
Estimated amortization charged to income, 2025	$ 252

Long-term Debt - Summary of Lon

Long-term Debt - Summary of Long-term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 16,471	$ 14,770
3.65% Senior Notes due 2023
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,496	1,495
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,449	1,444
1.375% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,163
2.0% Guaranteed Notes due 2032
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,163
0.25% Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,058	550
0.50% Notes due 2031
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,058	544
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,250
2.40% Senior Notes due 2022
Debt Instrument [Line Items]
Long-term debt, carrying amount	999	998
4.00% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount	930	929
4.30% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	845	845
3.75% Senior Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount	746	746
1.00% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	704	665
2.65% Senior Notes due 2022
Debt Instrument [Line Items]
Long-term debt, carrying amount	598	598
0.00% Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount	588	551
1.40% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount	498
3.63% Senior Notes due 2022
Debt Instrument [Line Items]
Long-term debt, carrying amount	295	294
7.00% Notes due 2038
Debt Instrument [Line Items]
Long-term debt, carrying amount	206	208
5.95% Notes due 2041
Debt Instrument [Line Items]
Long-term debt, carrying amount	114	114
5.13% Notes due 2043
Debt Instrument [Line Items]
Long-term debt, carrying amount	99	99
4.00% Notes due 2023
Debt Instrument [Line Items]
Long-term debt, carrying amount	80	81
3.70% Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount	55	55
3.30% Senior Notes due 2021
Debt Instrument [Line Items]
Long-term debt, carrying amount		1,597
4.20% Senior Notes due 2021
Debt Instrument [Line Items]
Long-term debt, carrying amount		600
Other
Debt Instrument [Line Items]
Long-term debt, carrying amount		135
Commercial paper borrowings
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 1,077	$ 2,222

Long-term Debt - Summary of L_2

Long-term Debt - Summary of Long-term Debt (Parenthetical) (Detail)	1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 24, 2019	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
3.65% Senior Notes due 2023
Debt Instrument [Line Items]
Debt instrument interest rate		3.65%			3.65%		3.65%
Debt instrument maturity date					2023		2023
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Debt instrument interest rate	3.90%	3.90%			3.90%		3.90%
Debt instrument maturity date	2028				2028		2028
1.375% Notes due 2026
Debt Instrument [Line Items]
Debt instrument interest rate		1.375%	1.375%		1.375%		1.375%
Debt instrument maturity date			2026		2026		2026
2.0% Notes due 2032
Debt Instrument [Line Items]
Debt instrument interest rate		2.00%	2.00%		2.00%		2.00%
Debt instrument maturity date			2032		2032		2032
0.25% Notes due 2027
Debt Instrument [Line Items]
Debt instrument interest rate		0.25%		0.25%	0.25%	0.25%	0.25%
Debt instrument maturity date				2027	2027	2027	2027
0.50% Notes due 2031
Debt Instrument [Line Items]
Debt instrument interest rate		0.50%		0.50%	0.50%	0.50%	0.50%
Debt instrument maturity date				2031	2031	2031	2031
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Debt instrument interest rate		2.65%	2.65%		2.65%		2.65%
Debt instrument maturity date			2030		2030		2030
2.40% Senior Notes due 2022
Debt Instrument [Line Items]
Debt instrument interest rate		2.40%			2.40%		2.40%
Debt instrument maturity date					2022		2022
4.00% Senior Notes due 2025
Debt Instrument [Line Items]
Debt instrument interest rate		4.00%			4.00%		4.00%
Debt instrument maturity date					2025		2025
4.30% Senior Notes due 2029
Debt Instrument [Line Items]
Debt instrument interest rate		4.30%			4.30%		4.30%
Debt instrument maturity date					2029		2029
3.75% Senior Notes due 2024
Debt Instrument [Line Items]
Debt instrument interest rate		3.75%			3.75%		3.75%
Debt instrument maturity date					2024		2024
1.00% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Debt instrument interest rate		1.00%			1.00%		1.00%
Debt instrument maturity date					2026		2026
2.65% Senior Notes due 2022
Debt Instrument [Line Items]
Debt instrument interest rate		2.65%			2.65%		2.65%
Debt instrument maturity date					2022		2022
0.00% Notes due 2024
Debt Instrument [Line Items]
Debt instrument interest rate		0.00%			0.00%	0.00%	0.00%
Debt instrument maturity date					2024	2024	2024
1.40% Senior Notes due 2025
Debt Instrument [Line Items]
Debt instrument interest rate		1.40%			1.40%		1.40%
Debt instrument maturity date		2025			2025		2025
3.63% Senior Notes due 2022
Debt Instrument [Line Items]
Debt instrument interest rate	3.63%	3.63%			3.63%		3.63%
Debt instrument maturity date	2022				2022		2022
7.00% Notes due 2038
Debt Instrument [Line Items]
Debt instrument interest rate		7.00%			7.00%		7.00%
Debt instrument maturity date					2038		2038
5.95% Notes due 2041
Debt Instrument [Line Items]
Debt instrument interest rate		5.95%			5.95%		5.95%
Debt instrument maturity date					2041		2041
5.13% Notes due 2043
Debt Instrument [Line Items]
Debt instrument interest rate		5.13%			5.13%		5.13%
Debt instrument maturity date					2043		2043
4.00% Notes due 2023
Debt Instrument [Line Items]
Debt instrument interest rate		4.00%			4.00%		4.00%
Debt instrument maturity date					2023		2023
3.70% Notes due 2024
Debt Instrument [Line Items]
Debt instrument interest rate		3.70%			3.70%		3.70%
Debt instrument maturity date					2024		2024
3.30% Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument interest rate		3.30%	3.30%		3.30%		3.30%
Debt instrument maturity date			2021		2021		2021
4.20% Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument interest rate		4.20%	4.20%		4.20%		4.20%
Debt instrument maturity date			2021		2021		2021

Long-term Debt - Additional Inf

Long-term Debt - Additional Information (Detail) $ in Thousands, € in Millions	Jul. 29, 2020USD ($)	Apr. 24, 2019USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020EUR (€)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Jun. 30, 2020EUR (€)	Dec. 31, 2019EUR (€)	Sep. 30, 2019EUR (€)
Debt Instrument [Line Items]
Long-term debt, fair value			$ 17,200,000			$ 17,200,000		$ 15,300,000
Committed credit facility agreement aggregated			8,060,000			8,060,000
Unused credit facility			6,980,000			6,980,000
Debt instrument premium paid on repurchase				$ 40,000		29,000
Long-term debt, carrying amount			16,471,000			16,471,000		$ 14,770,000
Debt instrument premium paid		$ 48,000
0.25% Notes due 2027
Debt Instrument [Line Items]
Notes, face amount			$ 500,000		€ 400	$ 500,000			€ 1,000	€ 500	€ 500
Debt instrument interest rate			0.25%		0.25%	0.25%	0.25%	0.25%		0.25%	0.25%
Debt instrument maturity date					2027	2027	2027	2027
Long-term debt, carrying amount			$ 1,058,000			$ 1,058,000		$ 550,000
0.50% Notes due 2031
Debt Instrument [Line Items]
Notes, face amount					€ 400		$ 500,000			€ 500
Debt instrument interest rate			0.50%		0.50%	0.50%	0.50%	0.50%		0.50%	0.50%
Debt instrument maturity date					2031	2031	2031	2031
Long-term debt, carrying amount			$ 1,058,000			$ 1,058,000		$ 544,000
1.375% Notes due 2026
Debt Instrument [Line Items]
Notes, face amount | €									€ 1,000
Debt instrument interest rate			1.375%	1.375%		1.375%		1.375%	1.375%	1.375%
Debt instrument maturity date				2026		2026		2026
Long-term debt, carrying amount			$ 1,163,000			$ 1,163,000
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Notes, face amount				$ 900,000
Debt instrument interest rate			2.65%	2.65%		2.65%		2.65%	2.65%	2.65%
Debt instrument maturity date				2030		2030		2030
Long-term debt, carrying amount			$ 1,250,000			$ 1,250,000
2.0% Notes due 2032
Debt Instrument [Line Items]
Notes, face amount | €									€ 1,000
Debt instrument interest rate			2.00%	2.00%		2.00%		2.00%	2.00%	2.00%
Debt instrument maturity date				2032		2032		2032
Long-term debt, carrying amount			$ 1,163,000			$ 1,163,000
4.20% Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument interest rate			4.20%	4.20%		4.20%		4.20%	4.20%	4.20%
Debt instrument maturity date				2021		2021		2021
Debt instrument, repurchase amount				$ 600,000
Long-term debt, carrying amount								$ 600,000
3.30% Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument interest rate			3.30%	3.30%		3.30%		3.30%	3.30%	3.30%
Debt instrument maturity date				2021		2021		2021
Debt instrument, repurchase amount				$ 935,000
Long-term debt, carrying amount								$ 1,597,000
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Notes, face amount			$ 350,000			$ 350,000
Debt instrument interest rate			2.65%			2.65%
Debt instrument maturity date			2030
1.40% Senior Notes due 2025
Debt Instrument [Line Items]
Notes, face amount			$ 500,000			$ 500,000
Debt instrument interest rate			1.40%			1.40%		1.40%		1.40%
Debt instrument maturity date			2025			2025		2025
Long-term debt, carrying amount			$ 498,000			$ 498,000
0.00% Notes due 2024
Debt Instrument [Line Items]
Notes, face amount | €										€ 500	€ 500
Debt instrument interest rate			0.00%			0.00%	0.00%	0.00%		0.00%	0.00%
Debt instrument maturity date						2024	2024	2024
Long-term debt, carrying amount			$ 588,000			$ 588,000		$ 551,000
3.00% Senior Notes due 2020
Debt Instrument [Line Items]
Debt instrument interest rate							3.00%				3.00%
Debt instrument maturity date						2020
Debt instrument, repurchase amount			$ 783,000			$ 783,000
3.30% Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument interest rate							3.625%				3.625%
Debt instrument maturity date						2022
Debt instrument, repurchase amount							$ 321,000
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Notes, face amount		$ 1,500
Debt instrument interest rate		3.90%	3.90%			3.90%		3.90%		3.90%
Debt instrument maturity date		2028				2028		2028
Long-term debt, carrying amount			$ 1,449,000			$ 1,449,000		$ 1,444,000
3.00% Senior Notes due 2020
Debt Instrument [Line Items]
Debt instrument interest rate		3.00%
Debt instrument maturity date		2020
Debt instrument, amount exchanged		$ 401,000
3.63% Senior Notes due 2022
Debt Instrument [Line Items]
Debt instrument interest rate		3.63%	3.63%			3.63%		3.63%		3.63%
Debt instrument maturity date		2022				2022		2022
Long-term debt, carrying amount			$ 295,000			$ 295,000		$ 294,000
Debt instrument, amount exchanged		$ 234,000
4.00% Senior Notes due 2025
Debt Instrument [Line Items]
Debt instrument interest rate		4.00%
Debt instrument maturity date		2025
Debt instrument, amount exchanged		$ 817,000
Commercial paper programs mature in April 2021
Debt Instrument [Line Items]
Committed credit facility agreement aggregated			1,810,000			1,810,000
Commercial paper programs mature in February 2023
Debt Instrument [Line Items]
Committed credit facility agreement aggregated			2,750,000			2,750,000
Commercial paper programs mature in July 2025
Debt Instrument [Line Items]
Committed credit facility agreement aggregated			1,500,000			1,500,000
Commercial paper programs mature in February 2025
Debt Instrument [Line Items]
Committed credit facility agreement aggregated			2,000,000			2,000,000
Commercial paper borrowings
Debt Instrument [Line Items]
Long-term debt			1,080,000			1,080,000		2,220,000
Long-term debt, carrying amount			$ 1,077,000			$ 1,077,000		$ 2,222,000
Guaranteed Euro Medium Term Note Program
Debt Instrument [Line Items]
Long-term debt, carrying amount | €									€ 5,000
Revolving Credit Facility
Debt Instrument [Line Items]
Committed credit facility agreement aggregated | €									€ 1,540
Credit facility extended period				1 year
Credit facility drawn	$ 0

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2020USD ($)Country	Jun. 30, 2020EUR (€)	Mar. 31, 2020EUR (€)	Dec. 31, 2019EUR (€)	Sep. 30, 2019USD ($)	Sep. 30, 2019EUR (€)	Dec. 31, 2017USD ($)
Derivative [Line Items]
Fixed rate debt aggregate	$ 16,600,000,000
Variable rate debt aggregate	$ 1,200,000,000
Number of countries in which Schlumberger generates revenue | Country	120
Denominated debt issued	$ 500,000,000	€ 2,000,000,000	€ 800,000,000	€ 1,500,000,000			$ 1,100,000,000
Recognized a cumulative loss in accumulated other comprehensive loss relating to changes in the fair value of foreign currency forward contracts and cross-currency swaps	$ 218,000,000
2.20% Senior Notes due 2020
Derivative [Line Items]
Notes, face amount							$ 500,000,000
Derivative swap interest rate							2.20%
2.65% Senior Notes due 2022
Derivative [Line Items]
Notes, face amount							$ 600,000,000
Derivative swap interest rate							2.65%
Promissory note interest rate	2.65%			2.65%
0.00% Notes due 2024
Derivative [Line Items]
Notes, face amount | €				€ 500,000,000		€ 500,000,000
Derivative swap interest rate				0.00%
Promissory note interest rate	0.00%			0.00%	0.00%	0.00%
0.25% Notes due 2027
Derivative [Line Items]
Notes, face amount	$ 500,000,000	€ 1,000,000,000	€ 400,000,000	€ 500,000,000		€ 500,000,000
Derivative swap interest rate	1.40%	1.375%	0.25%	0.25%
Promissory note interest rate	0.25%		0.25%	0.25%	0.25%	0.25%
0.50% Notes due 2031
Derivative [Line Items]
Notes, face amount			€ 400,000,000	€ 500,000,000	$ 500,000,000
Derivative swap interest rate			0.50%	0.50%
Promissory note interest rate	0.50%		0.50%	0.50%	0.50%	0.50%
1.40% Senior Notes due 2025
Derivative [Line Items]
Notes, face amount	$ 500,000,000
Promissory note interest rate	1.40%			1.40%
0.50% Notes due 2031
Derivative [Line Items]
Notes, face amount | €			€ 400,000,000
Derivative swap interest rate			0.50%
1.375% Notes due 2026
Derivative [Line Items]
Notes, face amount | €		€ 1,000,000,000
Derivative swap interest rate		1.375%
Promissory note interest rate	1.375%	1.375%		1.375%
2.00% Notes due 2032
Derivative [Line Items]
Notes, face amount | €		€ 850,000,000
Derivative swap interest rate		2.00%
Cross currency swaps
Derivative [Line Items]
Notional amount of interest rate swap	$ 500,000,000	€ 1,850,000,000	€ 800,000,000	€ 1,500,000,000			$ 1,100,000,000
Promissory note interest rate			2.20%	2.76%
Cross currency swaps | 2.20% Senior Notes due 2020
Derivative [Line Items]
Promissory note interest rate							1.97%
Cross currency swaps | 2.65% Senior Notes due 2022
Derivative [Line Items]
Promissory note interest rate							2.52%
Cross currency swaps | 0.00% Notes due 2024
Derivative [Line Items]
Promissory note interest rate				2.29%
Cross currency swaps | 0.25% Notes due 2027
Derivative [Line Items]
Promissory note interest rate			1.87%	2.51%
Cross currency swaps | 1.40% Senior Notes due 2025
Derivative [Line Items]
Promissory note interest rate	1.73%
Cross currency swaps | 1.375% Notes due 2026
Derivative [Line Items]
Promissory note interest rate		2.77%
Cross currency swaps | 2.00% Notes due 2032
Derivative [Line Items]
Promissory note interest rate		3.45%
Foreign exchange contracts
Derivative [Line Items]
Notional amount of interest rate swap	$ 10,900,000,000
Foreign exchange contracts | Debt | Derivatives designated as hedges
Derivative [Line Items]
Notional amount of interest rate swap	$ 6,700,000,000

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities - Effect of Derivative Instruments Designated as Cash Flow Hedges and Not Designated as Hedges on Consolidated Statement of Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivatives not designated as hedges | Foreign exchange contracts | Cost of services/sales
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ (14)		$ (12)	$ (8)
Cash Flow Hedging | Derivatives designated as hedges
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	190	$ (5)	335	(47)
Cash Flow Hedging | Derivatives designated as hedges | Foreign exchange contracts | Cost of services/sales
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	(7)	(3)	(12)	(7)
Cash Flow Hedging | Derivatives designated as hedges | Cross currency swaps | Cost of services/sales
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ 197	$ (2)	$ 347	$ (40)

Segment Information - Schedule

Segment Information - Schedule of Segment Reporting Information, by Segment (Detail) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2020		Sep. 30, 2019		Sep. 30, 2020		Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenue		$ 5,258		$ 8,541		$ 18,069		$ 24,689
Income (Loss) Before Taxes		(54)		(11,971)		(11,769)		(10,870)
Pretax segment operating income		575		1,096		1,747		2,972
Interest expense		138		160		419		462
Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue		1,010		1,651		3,372		4,669
Drilling
Segment Reporting Information [Line Items]
Revenue		1,519		2,469		5,540		7,275
Production
Segment Reporting Information [Line Items]
Revenue		1,801		3,153		6,119		9,120
Cameron
Segment Reporting Information [Line Items]
Revenue		965		1,363		3,235		3,949
Operating Segments
Segment Reporting Information [Line Items]
Revenue		5,258		8,541		18,069		24,689
Interest income				1		1		6
Interest expense		7		9		22		29
Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue		1,010		1,651		3,372		4,669
Income (Loss) Before Taxes		169		360		538		959
Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue		1,519		2,469		5,540		7,275
Income (Loss) Before Taxes		144		306		594		914
Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue		1,801		3,153		6,119		9,120
Income (Loss) Before Taxes		227		288		464		740
Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue		965		1,363		3,235		3,949
Income (Loss) Before Taxes		60		173		262		486
Eliminations & other
Segment Reporting Information [Line Items]
Revenue		(37)		(95)		(197)		(324)
Income (Loss) Before Taxes		(25)		(31)		(111)		(127)
Corporate & other	[1]	(151)		(231)		(548)		(742)
Interest income		3	[2]	7	[2]	25	[3]	25	[3]
Interest expense		(131)	[4]	(151)	[4]	(397)	[5]	(433)	[5]
Charges and credits	[6]	$ (350)		$ (12,692)		$ (12,596)		$ (12,692)
[1]	Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items.
[2]	Interest income excludes amounts which are included in the segments’ income ($- million in 2020; $1 million in 2019).
[3]	Interest income excludes amounts which are included in the segments’ income ($1 million in 2020; $6 million in 2019).
[4]	Interest expense excludes amounts which are included in the segments’ income ($7 million in 2020; $9 million in 2019).
[5]	Interest expense excludes amounts which are included in the segments’ income ($22 million in 2020; $29 million in 2019).
[6]	See Note 2 – Charges and Credits

Segment Information - Schedul_2

Segment Information - Schedule of Segment Reporting Information, by Segment (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Interest expense	$ 138	$ 160	$ 419	$ 462
Operating Segments
Segment Reporting Information [Line Items]
Interest income		1	1	6
Interest expense	$ 7	$ 9	$ 22	$ 29

Segment Information - Revenue b

Segment Information - Revenue by Geographic Area (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 5,258	$ 8,541	$ 18,069	$ 24,689
Operating Segments
Segment Reporting Information [Line Items]
Revenue	5,258	8,541	18,069	24,689
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenue	1,157	2,850	4,620	8,389
Operating Segments | Latin America
Segment Reporting Information [Line Items]
Revenue	707	1,014	2,195	3,121
Operating Segments | Europe/CIS/Africa
Segment Reporting Information [Line Items]
Revenue	1,397	2,062	4,597	5,665
Operating Segments | Middle East & Asia
Segment Reporting Information [Line Items]
Revenue	1,987	2,553	6,559	7,343
Eliminations & other
Segment Reporting Information [Line Items]
Revenue	$ 10	$ 62	$ 98	$ 171

Segment Information - Summary o

Segment Information - Summary of North America and International Revenue Disaggregated by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 5,258	$ 8,541	$ 18,069	$ 24,689
Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	1,010	1,651	3,372	4,669
Drilling
Segment Reporting Information [Line Items]
Revenue	1,519	2,469	5,540	7,275
Production
Segment Reporting Information [Line Items]
Revenue	1,801	3,153	6,119	9,120
Cameron
Segment Reporting Information [Line Items]
Revenue	965	1,363	3,235	3,949
Other
Segment Reporting Information [Line Items]
Revenue	(37)	(95)	(197)	(324)
Operating Segments
Segment Reporting Information [Line Items]
Revenue	5,258	8,541	18,069	24,689
Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	1,010	1,651	3,372	4,669
Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	1,519	2,469	5,540	7,275
Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	1,801	3,153	6,119	9,120
Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	965	1,363	3,235	3,949
Eliminations & other
Segment Reporting Information [Line Items]
Revenue	10	62	98	171
Eliminations & other | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	4	5	13	15
Eliminations & other | Drilling
Segment Reporting Information [Line Items]
Revenue	28	56	118	160
Eliminations & other | Production
Segment Reporting Information [Line Items]
Revenue	1	1	2	2
Eliminations & other | Cameron
Segment Reporting Information [Line Items]
Revenue	(7)	2	14	32
Eliminations & other | Other
Segment Reporting Information [Line Items]
Revenue	(16)	(2)	(49)	(38)
North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	1,157	2,850	4,620	8,389
North America | Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	143	299	508	756
North America | Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	226	552	1,018	1,680
North America | Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	462	1,426	1,937	4,218
North America | Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	326	589	1,173	1,771
North America | Operating Segments | Other
Segment Reporting Information [Line Items]
Revenue		(16)	(16)	(36)
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,091	5,629	13,351	16,129
International | Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	863	1,347	2,851	3,898
International | Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	1,265	1,861	4,404	5,435
International | Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	1,338	1,726	4,180	4,900
International | Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	646	772	2,048	2,146
International | Operating Segments | Other
Segment Reporting Information [Line Items]
Revenue	$ (21)	$ (77)	$ (132)	$ (250)

Segment Information - Additiona

Segment Information - Additional Information (Detail) - USD ($) $ in Billions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Segment Reporting [Abstract]
Revenue in excess of billings	$ 0.2	$ 0.2
Total backlog	$ 2.7
Percentage of revenue expected to be recognized over next 12 months	65.00%
Billings and cash collections in excess of revenue	$ 1	$ 0.9

Pension and Other Postretirem_3

Pension and Other Postretirement Benefit Plans - Net Pension Cost (Credit) for Schlumberger Pension Plans and US Postretirement Medical Plan (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain			$ 69
Postretirement medical plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5	$ 8	23	$ 23
Interest cost	7	12	27	36
Expected return on plan assets	(19)	(16)	(52)	(49)
Amortization of prior service cost	(4)	(7)	(19)	(21)
Total pension cost (credit)	(11)	(3)	(90)	(11)
Curtailment gain			(69)
US
Defined Benefit Plan Disclosure [Line Items]
Service cost	10	14	41	41
Interest cost	36	45	111	136
Expected return on plan assets	(58)	(58)	(175)	(173)
Amortization of prior service cost	2	3	6	7
Amortization of net loss	9	7	31	23
Total pension cost (credit)	(1)	11	14	34
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	31	32	105	96
Interest cost	76	82	226	248
Expected return on plan assets	(148)	(148)	(443)	(446)
Amortization of prior service cost		2		6
Amortization of net loss	39	16	119	47
Total pension cost (credit)	$ (2)	$ (16)	$ 7	$ (49)

Pension and Other Postretirem_4

Pension and Other Postretirement Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Impact of curtailment		$ (69)
Postretirement medical plan
Defined Benefit Plan Disclosure [Line Items]
Impact of curtailment		$ 69
Postretirement medical plan | Impairment and Other
Defined Benefit Plan Disclosure [Line Items]
Impact of curtailment	$ 69