v3.26.1
Revenue disaggregation and segmental analysis - Segmental assets (Details) - EUR (€)
€ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Disclosure of operating segments [line items]      
Non-current assets € 70,470 € 64,150 € 67,351
Capital additions 7,500 6,893 6,412
Right-of-use asset additions 3,845 4,656 3,103
Other additions intangible assets 1,084 236 283
Depreciation and amortisation on owned assets 12,454 10,804 10,414
Impairment reversal/(loss) 0 4,515 (64)
Common Functions      
Disclosure of operating segments [line items]      
Non-current assets 2,195 2,281 1,972
Capital additions 838 1,142 782
Right-of-use asset additions 362 212 203
Other additions intangible assets 1 0 0
Depreciation and amortisation on owned assets 1,089 1,078 970
Impairment reversal/(loss) 0 0 0
Germany      
Disclosure of operating segments [line items]      
Non-current assets 36,746 37,621 42,931
Capital additions 2,496 2,482 2,565
Right-of-use asset additions 953 1,127 1,045
Other additions intangible assets 175 0 0
Depreciation and amortisation on owned assets 4,556 4,536 4,543
Impairment reversal/(loss) 0 4,350 0
UK      
Disclosure of operating segments [line items]      
Non-current assets 13,953 7,904 6,863
Capital additions 1,549 926 878
Right-of-use asset additions 1,113 2,157 957
Other additions intangible assets 38 48 0
Depreciation and amortisation on owned assets 3,274 1,908 1,733
Impairment reversal/(loss) 0 0 0
Other Europe      
Disclosure of operating segments [line items]      
Non-current assets 7,451 7,304 7,564
Capital additions 892 857 862
Right-of-use asset additions 702 474 442
Other additions intangible assets 47 26 0
Depreciation and amortisation on owned assets 1,531 1,472 1,447
Impairment reversal/(loss) 0 165 0
Turkey      
Disclosure of operating segments [line items]      
Non-current assets 2,781 2,059 1,644
Capital additions 540 447 320
Right-of-use asset additions 219 187 160
Other additions intangible assets 514 0 120
Depreciation and amortisation on owned assets 795 681 537
Impairment reversal/(loss) 0 0 (64)
Africa      
Disclosure of operating segments [line items]      
Non-current assets 7,344 6,981 6,377
Capital additions 1,185 1,039 1,005
Right-of-use asset additions 496 499 296
Other additions intangible assets 309 162 163
Depreciation and amortisation on owned assets 1,209 1,129 1,184
Impairment reversal/(loss) € 0 € 0 € 0