v3.26.1
Post employment benefits - Fair value of assets and present value of liabilities of schemes (Details) - Pension Plans - EUR (€)
€ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Post employment benefits    
Balance at beginning of the period € 55 € 76
Service cost (38) (51)
Interest income/(cost) 5 4
Return on plan assets excluding interest income (35) (467)
Actuarial gains arising from changes in demographic assumptions 55 6
Actuarial gains arising from changes in financial assumptions 173 465
Actuarial losses arising from experience adjustments (188) (16)
Employer cash contributions 46 41
Exchange rate movements 18 5
Other movements (9) (8)
Balance at end of the period 82 55
Assets.    
Post employment benefits    
Balance at beginning of the period 4,854 5,148
Interest income/(cost) 237 229
Return on plan assets excluding interest income (35) (467)
Employer cash contributions 46 41
Member cash contributions 16 19
Benefits paid (221) (192)
Exchange rate movements (149) 84
Other movements (9) (8)
Balance at end of the period 4,739 4,854
Liabilities.    
Post employment benefits    
Balance at beginning of the period (4,799) (5,072)
Service cost (38) (51)
Interest income/(cost) (232) (225)
Actuarial gains arising from changes in demographic assumptions 55 6
Actuarial gains arising from changes in financial assumptions 173 465
Actuarial losses arising from experience adjustments (188) (16)
Member cash contributions (16) (19)
Benefits paid 221 192
Exchange rate movements 167 (79)
Balance at end of the period € (4,657) € (4,799)