Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]

United Utilities Group PLC - Filing #6816965

Concept	2024-04-01 to 2025-03-31	2024-04-01 to 2025-03-31	As at 2025-03-31	2024-04-01 to 2025-03-31	2024-04-01 to 2025-03-31	2024-04-01 to 2025-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	As at 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31
Disclosure of effect of changes in foreign exchange rates [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of information when currency is not exchangeable into another currency [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of information when foreign operation’s functional currency is not exchangeable into presentation currency [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of summarised financial information about foreign operation [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of summarised financial information about foreign operation [abstract]
Disclosure of summarised financial information about foreign operation [line items]
Non-current assets	—	—	14,685,600,000 GBP	—	—	—	—	—	—	13,884,400,000 GBP	—	—
Current assets	—	—	2,083,900,000 GBP	—	—	—	—	—	—	1,769,000,000 GBP	—	—
Non-current liabilities	—	—	13,693,700,000 GBP	—	—	—	—	—	—	12,489,500,000 GBP	—	—
Current liabilities	—	—	1,075,900,000 GBP	—	—	—	—	—	—	1,107,800,000 GBP	—	—
Revenue	—	—	—	2,145,200,000 GBP	—	—	—	—	1,949,500,000 GBP	—	—	—
Profit (loss)	– GBP	– GBP	—	264,700,000 GBP	– GBP	264,700,000 GBP	– GBP	126,900,000 GBP	126,900,000 GBP	—	– GBP	– GBP
Comprehensive income	– GBP	– GBP	—	288,200,000 GBP	8,100,000 GBP	280,100,000 GBP	42,300,000 GBP	88,600,000 GBP	130,900,000 GBP	—	– GBP	– GBP