Statement Of Comprehensive Income [Abstract]

CGG - Filing #2817279

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	5,000,000 USD	—	—	1,805,000,000 USD	—	—	—	—	1,800,000,000 USD	1,805,000,000 USD	4,368,000,000 USD	—	4,405,000,000 USD	—	—	—	—	37,000,000 USD	—	4,405,000,000 USD
Other comprehensive income [abstract]
Other comprehensive income	10,000,000 USD	1,000,000 USD	- USD	182,000,000 USD	268,000,000 USD	- USD	- USD	- USD	172,000,000 USD	87,000,000 USD	135,000,000 USD	- USD	68,000,000 USD	- USD	- USD	- USD	- USD	27,000,000 USD	176,000,000 USD	108,000,000 USD
Comprehensive income	15,000,000 USD	1,000,000 USD	- USD	1,987,000,000 USD	268,000,000 USD	- USD	- USD	- USD	1,972,000,000 USD	1,718,000,000 USD	4,233,000,000 USD	- USD	4,473,000,000 USD	- USD	- USD	- USD	- USD	64,000,000 USD	176,000,000 USD	4,297,000,000 USD
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	1,987,000,000 USD	—	4,297,000,000 USD	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	15,000,000 USD	—	64,000,000 USD	—	—	—	—	—	—	—	—	—