Earnings Per Share - Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net Income Attributable to Schlumberger
Basic	$ 1,186	$ 1,123	$ 3,366	$ 3,091
Diluted	$ 1,186	$ 1,123	$ 3,366	$ 3,091
Average Shares Outstanding
Basic	1,417	1,424	1,425	1,424
Assumed exercise of stock options	1	2	1	2
Unvested restricted stock	14	16	15	16
Diluted	1,432	1,442	1,441	1,442
Earnings per Share
Basic	$ 0.84	$ 0.79	$ 2.36	$ 2.17
Diluted	$ 0.83	$ 0.78	$ 2.34	$ 2.14