Disclosure Of Entity's Operating Segments [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 entity's operating segments [text block]	—	—	—	1 Segmental reporting	—	—	—	—	—	—	—	—
Disclosure of operating segments [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of operating segments [abstract]
Disclosure of operating segments [line items]
Revenue	—	—	—	2,145,200,000 GBP	—	—	—	—	1,949,500,000 GBP	—	—	—
Tax expense (income)	—	—	—	90,300,000 GBP	—	—	—	—	43,100,000 GBP	—	—	—
Profit (loss) before tax	—	—	—	355,000,000 GBP	—	—	—	—	170,000,000 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
Assets	—	—	16,769,500,000 GBP	—	—	—	—	—	—	15,653,400,000 GBP	—	—
Liabilities	—	—	14,769,600,000 GBP	—	—	—	—	—	—	13,597,300,000 GBP	—	—
Cash flows from (used in) operating activities	—	—	—	918,100,000 GBP	—	—	—	—	745,100,000 GBP	—	—	—
Cash flows from (used in) investing activities	—	—	—	987,200,000 GBP	—	—	—	—	731,400,000 GBP	—	—	—
Cash flows from (used in) financing activities	—	—	—	358,800,000 GBP	—	—	—	—	1,037,700,000 GBP	—	—	—
Disclosure of products and services [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of products and services [abstract]
Disclosure of products and services [line items]
Disclosure of geographical areas [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of geographical areas [abstract]
Disclosure of geographical areas [line items]
Disclosure of major customers [text block]	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of major customers [abstract]
Disclosure of major customers [line items]