CONSOLIDATED STATEMENT OF LOSS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue
Total Revenue	$ 5,258	$ 8,541	$ 18,069	$ 24,689
Interest & other income	22	21	94	61
Expenses
Research & engineering	137	176	452	527
General & administrative	85	120	293	345
Impairments & other	350	12,692	12,596	12,692
Interest	138	160	419	462
Loss before taxes	(54)	(11,971)	(11,769)	(10,870)
Tax expense (benefit)	19	(598)	(901)	(420)
Net loss	(73)	(11,373)	(10,868)	(10,450)
Net income attributable to noncontrolling interests	9	10	24	20
Net loss attributable to Schlumberger	$ (82)	$ (11,383)	$ (10,892)	$ (10,470)
Basic loss per share of Schlumberger	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)
Diluted loss per share of Schlumberger	$ (0.06)	$ (8.22)	$ (7.84)	$ (7.56)
Average shares outstanding:
Basic	1,391	1,385	1,389	1,385
Assuming dilution	1,391	1,385	1,389	1,385
Services
Revenue
Total Revenue	$ 3,666	$ 6,332	$ 12,812	$ 18,390
Expenses
Cost of services and sales	3,127	5,371	11,236	15,794
Product
Revenue
Total Revenue	1,592	2,209	5,257	6,299
Expenses
Cost of services and sales	$ 1,497	$ 2,014	$ 4,936	$ 5,800