Contract liabilities (Tables)

12 Months Ended

Mar. 31, 2020

Contract liabilities [abstract]

Summary of contract liabilities

	2020	2019
	£m	£m
Current	76	61
Non-current	1,082	933
	1,158	994

Explanation of significant changes in contract assets and contract liabilities

Significant changes in the contract liabilities balances during the period are as follows:

	2020		2019
	£m		£m
As at 1 April	994		866
Exchange adjustments	39		29
Revenue recognised that was included in the contract liability balance at the beginning of the period	(60	)	(51	)
Increases due to cash received, excluding amounts recognised as revenue during the period	185		155
Changes due to amounts recognised as revenue	—		(5	)
At 31 March	1,158		994