CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 970	$ 443	$ 1,490	$ 755
Currency translation adjustments
Unrealized net change arising during the period	216	(38)	110	(24)
Cash flow hedges
Net gain (loss) on cash flow hedges	63	(128)	72	22
Reclassification to net income of net realized gain	(114)	(3)	(97)	(5)
Pension and other postretirement benefit plans
Amortization to net income of net actuarial loss	14	70	30	133
Amortization to net income of net prior service credit	(6)	(6)	(11)	(11)
Income taxes on pension and other postretirement benefit plans	2	(3)	2	(3)
Other		(4)		(4)
Comprehensive income	1,145	331	1,596	863
Comprehensive income attributable to noncontrolling interests	11	12	21	25
Comprehensive income attributable to Schlumberger	$ 1,134	$ 319	$ 1,575	$ 838