Statement Of Financial Position [Abstract]

Derwent London PLC - Filing #2016614

Concept	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	—	49,900,000 GBP	—	—	—	—	—	—	—	19,100,000 GBP	54,300,000 GBP	—	—	—	—	—	—	—	21,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Investment property	—	4,551,400,000 GBP	—	—	—	—	—	—	—	– GBP	5,002,000,000 GBP	—	—	—	—	—	—	—	– GBP	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	73,000,000 GBP	—	—	—	—	—	—	—	24,800,000 GBP	76,600,000 GBP	—	—	—	—	—	—	—	67,300,000 GBP	—	—	—	—	—	—	—	105,500,000 GBP	—	—	90,600,000 GBP
Assets	—	5,028,000,000 GBP	—	—	—	—	—	—	—	4,600,600,000 GBP	5,509,400,000 GBP	—	—	—	—	—	—	—	4,110,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	5,600,000 GBP	—	—	—	—	—	—	—	5,600,000 GBP	5,600,000 GBP	—	—	—	—	—	—	—	5,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Retained earnings	—	2,367,300,000 GBP	—	—	—	—	—	—	—	304,100,000 GBP	2,931,400,000 GBP	—	—	—	—	—	—	—	202,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Share premium	—	196,600,000 GBP	—	—	—	—	—	—	—	196,600,000 GBP	196,600,000 GBP	—	—	—	—	—	—	—	196,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Other reserves	—	939,300,000 GBP	—	—	—	—	—	—	—	926,200,000 GBP	941,900,000 GBP	—	—	—	—	—	—	—	925,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Equity	196,600,000 GBP	3,508,800,000 GBP	2,367,300,000 GBP	939,300,000 GBP	196,600,000 GBP	304,100,000 GBP	5,600,000 GBP	926,200,000 GBP	5,600,000 GBP	1,432,500,000 GBP	4,075,500,000 GBP	941,900,000 GBP	202,200,000 GBP	196,600,000 GBP	2,931,400,000 GBP	5,600,000 GBP	196,600,000 GBP	925,900,000 GBP	1,330,300,000 GBP	5,600,000 GBP	3,299,700,000 GBP	941,100,000 GBP	5,600,000 GBP	195,400,000 GBP	925,600,000 GBP	255,700,000 GBP	4,441,800,000 GBP	195,400,000 GBP	5,600,000 GBP	1,382,300,000 GBP
Liabilities [abstract]
Liabilities	—	1,519,200,000 GBP	—	—	—	—	—	—	—	3,168,100,000 GBP	1,433,900,000 GBP	—	—	—	—	—	—	—	2,779,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—