Revenues (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following tables disaggregate our product and service revenues by major product line and geographic region for the three months ended March 31, 2021 and 2020 and includes equipment revenues recognized under lease accounting standards of $28 million for the three months ended March 31, 2021, and $57 million for the three months ended March 31, 2020.

	Three Months Ended March 31,
(Dollars in millions)	2021		2020
Product Line Revenue for Western Hemisphere
Completion and Production	$	225	$	297
Drilling, Evaluation and Intervention	165		291
Total Western Hemisphere Revenue	390		588
Product Line Revenue for Eastern Hemisphere
Completion and Production	198		302
Drilling, Evaluation and Intervention	244		325
Total Eastern Hemisphere Revenue	442		627
Total Revenues	$	832	$	1,215

	Three Months Ended March 31,
(Dollars in millions)	2021		2020
Revenue by Geographic Areas:
North America	$	214	$	341
Latin America	176		247
Western Hemisphere	390		588
Middle East & North Africa and Asia	267		403
Europe/Sub-Sahara Africa/Russia	175		224
Eastern Hemisphere	442		627
Total Revenues	$	832	$	1,215

Schedule of Contract with Customer, Asset and Liability

Schedule of Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

In the following table, estimated revenue for contracts with original performance obligations greater than twelve months are expected to be recognized in the future related to performance obligations that are either unsatisfied or partially unsatisfied as of March 31, 2021.

(Dollars in millions)	2021		2022		2023		2024		Thereafter		Total
Service Revenue	$	38	$	41	$	39	$	40	$	54	$	212