Earnings Per Share - Reconciliation of Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Income Attributable to Schlumberger
Basic	$ 907	$ 550	$ 2,377	$ 1,280
Diluted	$ 907	$ 550	$ 2,377	$ 1,280
Average Shares Outstanding
Basic	1,418	1,402	1,414	1,399
Unvested restricted stock	21	22	22	23
Diluted	1,439	1,424	1,436	1,422
Earnings per Share
Basic	$ 0.64	$ 0.39	$ 1.68	$ 0.92
Diluted	$ 0.63	$ 0.39	$ 1.65	$ 0.90