Statement Of Changes In Equity [Abstract]

IG Group Holdings PLC - Filing #4974232

Concept	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	2,567,000,000.000 RUB	159,491,000,000.000 RUB	—	—	—	176,091,000,000.000 RUB	—	—	175,766,000,000.000 RUB	13,131,000,000.000 RUB	26,998,000,000.000 RUB	—	4,745,000,000.000 RUB	230,000,000.000 RUB	325,000,000.000 RUB	—	—	—	99,540,000,000.000 RUB	89,000,000.000 RUB	—	230,000,000.000 RUB	126,927,000,000.000 RUB	—	—	—	3,238,000,000.000 RUB	26,998,000,000.000 RUB	1,548,000,000.000 RUB	—	127,016,000,000.000 RUB	—	—	—	1,849,000,000.000 RUB	3,164,000,000.000 RUB	1,039,000,000.000 RUB	3,996,000,000.000 RUB	230,000,000.000 RUB	66,880,000,000.000 RUB	96,082,000,000.000 RUB	103,000,000.000 RUB	26,998,000,000.000 RUB	95,979,000,000.000 RUB
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	103,000,000.000 RUB	—	—	- RUB	- RUB	63,471,000,000.000 RUB	—	- RUB	- RUB	—	—	—	- RUB	—	—	—	63,368,000,000.000 RUB	63,471,000,000.000 RUB	44,213,000,000.000 RUB	—	—	- RUB	—	—	44,209,000,000.000 RUB	- RUB	- RUB	—	—	—	- RUB	—	4,000,000.000 RUB	- RUB	44,209,000,000.000 RUB	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	- RUB	—	—	- RUB	14,980,000,000.000 RUB	14,980,000,000.000 RUB	—	- RUB	- RUB	—	—	—	- RUB	—	—	—	14,980,000,000.000 RUB	- RUB	2,147,000,000.000 RUB	—	—	- RUB	—	—	- RUB	2,147,000,000.000 RUB	- RUB	—	—	—	- RUB	—	- RUB	- RUB	2,147,000,000.000 RUB	—	—	—	—	—	—	—	—	—	—
Comprehensive income	103,000,000.000 RUB	—	—	- RUB	14,980,000,000.000 RUB	48,491,000,000.000 RUB	—	- RUB	- RUB	—	—	—	- RUB	—	—	—	48,388,000,000.000 RUB	63,471,000,000.000 RUB	42,066,000,000.000 RUB	—	—	- RUB	—	—	44,209,000,000.000 RUB	2,147,000,000.000 RUB	- RUB	—	—	—	- RUB	—	4,000,000.000 RUB	- RUB	42,062,000,000.000 RUB	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	7,000,000.000 RUB	—	—	- RUB	- RUB	3,552,000,000.000 RUB	—	- RUB	- RUB	—	—	—	- RUB	—	—	—	3,559,000,000.000 RUB	3,552,000,000.000 RUB	11,563,000,000.000 RUB	—	—	- RUB	—	—	11,545,000,000.000 RUB	- RUB	- RUB	—	—	—	- RUB	—	18,000,000.000 RUB	- RUB	11,545,000,000.000 RUB	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	- RUB	—	—	2,548,000,000.000 RUB	- RUB	5,765,000,000.000 RUB	—	- RUB	3,197,000,000.000 RUB	—	—	—	- RUB	—	—	—	5,765,000,000.000 RUB	20,000,000.000 RUB	1,092,000,000.000 RUB	—	—	587,000,000.000 RUB	—	—	4,000,000.000 RUB	- RUB	509,000,000.000 RUB	—	—	—	- RUB	—	- RUB	- RUB	1,092,000,000.000 RUB	—	—	—	—	—	—	—	—	—	—