v3.25.1
Taxation - Deferred tax assets and liabilities (Details) - EUR (€)
€ in Millions
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Taxation      
Amount credited/(expensed) in income statement € (1,266) € 716  
Gross deferred tax asset 37,383 38,917  
Gross deferred tax liability (4,721) (4,826)  
Less amounts unrecognised (14,427) (14,613)  
Deferred tax assets and liabilities      
Deferred tax assets 19,033 20,177 € 19,316
Deferred tax liabilities (798) (699) (771)
Net deferred tax assets 18,235 19,478 € 18,545
Tangible assets      
Taxation      
Amount credited/(expensed) in income statement (6) (176)  
Gross deferred tax asset 2,831 2,656  
Gross deferred tax liability (1,133) (1,174)  
Less amounts unrecognised 0 10  
Deferred tax assets and liabilities      
Net deferred tax assets 1,698 1,492  
Intangible assets      
Taxation      
Amount credited/(expensed) in income statement 133 354  
Gross deferred tax asset 266 367  
Gross deferred tax liability (1,036) (1,177)  
Less amounts unrecognised (3) 11  
Deferred tax assets and liabilities      
Net deferred tax assets (773) (799)  
Tax losses      
Taxation      
Amount credited/(expensed) in income statement (1,256) 455  
Gross deferred tax asset 31,367 32,830  
Gross deferred tax liability   0  
Less amounts unrecognised (13,843) (14,051)  
Deferred tax assets and liabilities      
Net deferred tax assets 17,524 18,779  
Treasury related items      
Taxation      
Amount credited/(expensed) in income statement (43) 19  
Gross deferred tax asset 583 594  
Gross deferred tax liability (214) (138)  
Less amounts unrecognised (568) (569)  
Deferred tax assets and liabilities      
Net deferred tax assets (199) (113)  
Temporary differences relating to revenue recognition      
Taxation      
Amount credited/(expensed) in income statement (28) (61)  
Gross deferred tax asset 83 2  
Gross deferred tax liability (789) (677)  
Less amounts unrecognised   0  
Deferred tax assets and liabilities      
Net deferred tax assets (706) (675)  
Temporary differences relating to leases      
Taxation      
Amount credited/(expensed) in income statement (28) (16)  
Gross deferred tax asset 1,537 1,576  
Gross deferred tax liability (1,340) (1,354)  
Less amounts unrecognised   0  
Deferred tax assets and liabilities      
Net deferred tax assets 197 222  
Other temporary differences      
Taxation      
Amount credited/(expensed) in income statement (38) 141  
Gross deferred tax asset 716 892  
Gross deferred tax liability (209) (306)  
Less amounts unrecognised (13) (14)  
Deferred tax assets and liabilities      
Net deferred tax assets € 494 € 572