Statement Of Comprehensive Income [Abstract]

Hammerson PLC - Filing #1587226

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	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	– GBP	– GBP	– GBP	– GBP	– GBP	429,100,000 GBP	– GBP	– GBP	– GBP	– GBP	429,100,000 GBP	429,100,000 GBP	1,734,900,000 GBP	– GBP	– GBP	1,7 34.8 GBP	– GBP	– GBP	– GBP	– GBP	100,000 GBP	– GBP	1,734,800,000 GBP	– GBP
Other comprehensive income [abstract]
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	20,000,000 GBP	—	4 7.7 GBP	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	– GBP	– GBP	1,700,000 GBP	– GBP	– GBP	449,100,000 GBP	– GBP	194,900,000 GBP	156,400,000 GBP	– GBP	449,100,000 GBP	408,900,000 GBP	1,687,200,000 GBP	– GBP	– GBP	1,748,600,000 GBP	4,800,000 GBP	– GBP	– GBP	145,100,000 GBP	100,000 GBP	– GBP	1,687,100,000 GBP	88,400,000 GBP
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	—	—	449,100,000 GBP	—	1,687,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	—	– GBP	—	100,000 GBP	—	—	—	—	—	—	—	—	—	—	—