Statement Of Comprehensive Income [Abstract]

M&G PLC - Filing #1868951

Concept	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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
Statement of comprehensive income [abstract]
Profit (loss)	— GBP	1,632,000,000 GBP	— GBP	— GBP	1 , 6 1 9 GBP	— GBP	1,632,000,000 GBP	13,000,000 GBP	— GBP	9,000,000 GBP	— GBP	— GBP	— GBP	— GBP	— GBP	83,000,000 GBP	92,000,000 GBP	83,000,000 GBP
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	—	—	—	—	22,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	52,000,000 GBP	—
Other comprehensive income that will not be reclassified to profit or loss, net of tax	—	—	—	—	24,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	50,000,000 GBP	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	—	—	—	—	20,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	1 3 GBP	—
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	—	—	—	20,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	13,000,000 GBP	—
Other comprehensive income	— GBP	44,000,000 GBP	— GBP	20,000,000 GBP	44,000,000 GBP	— GBP	24,000,000 GBP	— GBP	— GBP	— GBP	— GBP	— GBP	— GBP	13,000,000 GBP	— GBP	37,000,000 GBP	37,000,000 GBP	50,000,000 GBP
Comprehensive income	— GBP	1,588,000,000 GBP	— GBP	20,000,000 GBP	1 , 5 7 5 GBP	— GBP	1 , 6 0 8 GBP	13,000,000 GBP	— GBP	9,000,000 GBP	— GBP	— GBP	— GBP	1 3 GBP	— GBP	120,000,000 GBP	129,000,000 GBP	13 3 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	1, 588 GBP	—	—	—	—	—	—	—	—	—	—	—	120,000,000 GBP	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	13,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	9,000,000 GBP	—