Profit Or Loss [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
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	—	—	—	—	—	—	—	—	—	134,800,000 GBP	—	145,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Other gains (losses)	—	—	—	—	—	—	—	—	—	—	155,000,000 GBP	—	545,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) from operating activities	—	—	—	—	—	—	—	—	—	—	310,100,000 GBP	—	1,664,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Finance income	—	—	—	—	—	—	—	—	—	—	15,100,000 GBP	—	9,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Finance costs	—	—	—	—	—	—	—	—	—	—	99,000,000 GBP	—	95. 5 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) before tax	—	—	—	—	—	—	—	—	—	—	408,000,000 GBP	—	1,736,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Tax expense (income)	—	—	—	—	—	—	—	—	—	—	1,300,000 GBP	—	500,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) from continuing operations	—	—	—	—	—	—	—	—	—	—	409,300,000 GBP	—	1,736,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) from discontinued operations	—	—	—	—	—	—	—	—	—	—	19,800,000 GBP	—	1,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—
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
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	—	—	—	—	—	—	—	—	—	429,100,000 GBP	—	1,734,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss), attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	—	– GBP	—	100,000 GBP	—	—	—	—	—	—	—	—	—	—	—