Earnings Per Share - Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Income Attributable to Schlumberger
Basic	$ 1,033	$ 959	$ 1,967	$ 1,469
Diluted	$ 1,033	$ 959	$ 1,967	$ 1,469
Average Shares Outstanding
Basic	1,423	1,414	1,425	1,413
Assumed exercise of stock options	2		2
Unvested restricted stock	17	22	17	22
Diluted	1,442	1,436	1,444	1,435
Earnings per Share
Basic	$ 0.73	$ 0.68	$ 1.38	$ 1.04
Diluted	$ 0.72	$ 0.67	$ 1.36	$ 1.02