Disclosure Of Fair Value Measurement [Text Block]

Derwent London PLC - Filing #1875168

Concept	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 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	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Disclosure of fair value measurement [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [abstract]
Disclosure of fair value measurement of assets [line items]
Assets	5,509,400,000 GBP	—	—	—	—	—	—	—	4,110,200,000 GBP	—	—	—	—	—	—	—	5,909,600,000 GBP	3,767,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Reconciliation of changes in fair value measurement, assets [abstract]
Disclosure of fair value measurement of liabilities [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of liabilities [abstract]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	1,433,900,000 GBP	—	—	—	—	—	—	—	2,779,900,000 GBP	—	—	—	—	—	—	—	1,467,800,000 GBP	2,385,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Reconciliation of changes in fair value measurement, liabilities [abstract]
Disclosure of fair value measurement of equity [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of equity [abstract]
Disclosure of fair value measurement of equity [line items]
Equity	4,075,500,000 GBP	5,600,000 GBP	925,900,000 GBP	202,200,000 GBP	1,330,300,000 GBP	196,600,000 GBP	– GBP	941,900,000 GBP	1,330,300,000 GBP	– GBP	196,600,000 GBP	2,931,400,000 GBP	5,600,000 GBP	4,075,500,000 GBP	3,299,700,000 GBP	941,100,000 GBP	4,441,800,000 GBP	1,382,300,000 GBP	925,600,000 GBP	– GBP	1,382,300,000 GBP	195,400,000 GBP	5,600,000 GBP	255,700,000 GBP	4,441,800,000 GBP	195,400,000 GBP	– GBP	5,600,000 GBP	3,124,500,000 GBP	51,900,000 GBP	4,263,200,000 GBP	5,600,000 GBP	1,446,800,000 GBP	– GBP	1,446,800,000 GBP	5,600,000 GBP	926,300,000 GBP	321,200,000 GBP	193,700,000 GBP	939,400,000 GBP	193,700,000 GBP	4,315,100,000 GBP
Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract]