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, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net Income Attributable to Schlumberger
Basic	$ 1,123	$ 907	$ 3,091	$ 2,377
Diluted	$ 1,123	$ 907	$ 3,091	$ 2,377
Average Shares Outstanding
Basic	1,424	1,418	1,424	1,414
Assumed exercise of stock options	2		2
Unvested restricted stock	16	21	16	22
Diluted	1,442	1,439	1,442	1,436
Earnings per Share
Basic	$ 0.79	$ 0.64	$ 2.17	$ 1.68
Diluted	$ 0.78	$ 0.63	$ 2.14	$ 1.65