Statement Of Financial Position [Abstract]

Pennon Group PLC - Filing #2044939

Concept	As at 2024-03-31	As at 2024-03-31	As at 2024-03-31	As at 2024-03-31	As at 2024-03-31	As at 2024-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2023-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31	As at 2022-03-31
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	—	—	—	—	—	5,361,600,000 GBP	4,476,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Goodwill	—	—	—	—	—	179,500,000 GBP	163,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Intangible assets other than goodwill	—	—	—	—	—	67,700,000 GBP	14,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Current tax assets	—	—	—	—	—	6,000,000 GBP	8,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	—	—	—	—	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	—	—	—	145,400,000 GBP	143,700,000 GBP	—	—	—	—	—	—	—	—	—	351,200,000 GBP	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	—	—	—	174,600,000 GBP	159,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Share premium	—	—	—	—	—	398,200,000 GBP	237,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	—	—	—	—	—	1,161,200,000 GBP	1,124,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Non-controlling interests	—	—	—	—	—	1,400,000 GBP	400,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Equity	431,300,000 GBP	1,400,000 GBP	398,200,000 GBP	174,600,000 GBP	157,100,000 GBP	1,162,600,000 GBP	1,125,200,000 GBP	237,600,000 GBP	159,500,000 GBP	570,600,000 GBP	157,100,000 GBP	400,000 GBP	154,700,000 GBP	161,700,000 GBP	235,500,000 GBP	722,600,000 GBP	1,274,600,000 GBP	100,000 GBP
Liabilities [abstract]
Current tax liabilities	—	—	—	—	—	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—
Deferred tax liabilities	—	—	—	—	—	548,300,000 GBP	507,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—