Summary of Accounting Policies - Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Income Attributable to Schlumberger
Basic	$ 4,461	$ 4,203	$ 3,441
Diluted	$ 4,461	$ 4,203	$ 3,441
Average Shares Outstanding
Basic	1,421	1,425	1,416
Dilutive impact of stock options and restricted stock	15	18	21
Diluted	1,436	1,443	1,437
Earnings per Share
Basic	$ 3.14	$ 2.95	$ 2.43
Diluted	$ 3.11	$ 2.91	$ 2.39