Other non-current liabilities (Details) - GBP (£) £ in Millions	Mar. 31, 2026	Mar. 31, 2025
Subclassifications of assets, liabilities and equities [abstract]
Deferred income	£ 6	£ 6
Customer contributions	401	403
Other payables	707	467
Other non-current liabilities	£ 1,114	£ 876

The amount of non-current deposits from customers. [Refer: Deposits from customers]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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- Definition

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

+ References

+ Details

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- Definition

The amount of non-current payables that the entity does not separately disclose in the same statement or note.

+ References

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- References

No definition available.

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- Definition

Non-Current Deferred Income

+ References

No definition available.

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