v3.26.1
Property, plant and equipment - Schedule of Property, Plant and Equipment (Detail) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance € 4,272    
Cost, Ending balance 7,149 € 4,272  
Impairment expense (115) (290) € (56)
Impairment reversal 42 74 30
Land and buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Book value 434 95 72
Space segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Book value 4,159 2,534 2,705
Ground segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Book value 751 246 203
Other fixtures & fittings, tools and equipment [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Book value 55 49 62
Total [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Book value 5,399 2,924 3,042
Cost [member] | Land and buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance 301 281 300
Additions 6 2  
Business combinations (Note 4) [1] 370    
Disposals (1)   (8)
Retirements (48) [2] (26) [3] (9) [4]
Transfer from assets under construction 9 [5] 17 2
Other movements (2) [6] 20 [7]  
Impact of currency translation (14) 7 (4)
Cost, Ending balance 621 301 281
Cost [member] | Space segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance 10,830 10,241 11,368
Additions 15 23 13
Business combinations (Note 4) [1] 2,009    
Disposals     (151)
Retirements (191) [2] (707) [3] (805) [4]
Transfer from assets under construction 494 [5] 950 8
Other movements (1) [6] 2 [7]  
Impact of currency translation (688) 321 (192)
Cost, Ending balance 12,468 10,830 10,241
Cost [member] | Ground segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance 743 767 902
Additions 52 22 9
Business combinations (Note 4) [1] 498    
Disposals (1)   (3)
Retirements (14) [2] (128) [3] (154) [4]
Transfer from assets under construction 87 [5] 82 30
Other movements 5 [6] (21) [7]  
Impact of currency translation (67) 21 (17)
Cost, Ending balance 1,303 743 767
Cost [member] | Other fixtures & fittings, tools and equipment [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance 266 300 312
Additions 13 8 5
Business combinations (Note 4) [1] 3    
Disposals (8) (3) (6)
Retirements (10) [2] (68) [3] (25) [4]
Transfer from assets under construction 23 [5] 14 14
Other movements (2) [6] 7 [7]  
Impact of currency translation (20) 8  
Cost, Ending balance 265 266 300
Cost [member] | Total [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Cost, Beginning balance 12,140 11,589 12,882
Additions 86 55 27
Business combinations (Note 4) [1] 2,880    
Disposals (10) (3) (168)
Retirements (263) [2] (929) [3] (993) [4]
Transfer from assets under construction 613 [5] 1,063 54
Other movements 0 [6] 8 [7]  
Impact of currency translation (789) 357 (213)
Cost, Ending balance 14,657 12,140 11,589
Depreciation [member] | Land and buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation, Beginning balance (206) (209) (215)
Depreciation (32) (10) (13)
Disposals     8
Retirements 44 [2] 25 [3] 9 [4]
Other movements [7]   (7)  
Impact of currency translation 7 (5) 2
Depreciation, End balance (187) (206) (209)
Depreciation [member] | Space segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation, Beginning balance (8,296) (7,536) (8,118)
Depreciation (667) (557) (503)
Impairment expense (115) (290) (56)
Impairment reversal 42 74 30
Disposals     151
Retirements 186 [2] 707 [3] 805 [4]
Transfer of impairment from assets in course of construction (Note 14)   (434)  
Other movements [7]   (2)  
Impact of currency translation 541 (258) 155
Depreciation, End balance (8,309) (8,296) (7,536)
Depreciation [member] | Ground segment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation, Beginning balance (497) (564) (675)
Depreciation (112) (57) (57)
Disposals     3
Retirements 14 [2] 126 [3] 154 [4]
Other movements [7]   15  
Impact of currency translation 43 (17) 11
Depreciation, End balance (552) (497) (564)
Depreciation [member] | Other fixtures & fittings, tools and equipment [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation, Beginning balance (217) (238) (244)
Depreciation (25) (26) (30)
Disposals 8 2 6
Retirements 10 [2] 68 [3] 25 [4]
Other movements [7]   (15)  
Impact of currency translation 14 (8) 5
Depreciation, End balance (210) (217) (238)
Depreciation [member] | Total [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation, Beginning balance (9,216) (8,547) (9,252)
Depreciation (836) (650) (603)
Impairment expense (115) (290) (56)
Impairment reversal 42 74 30
Disposals 8 2 168
Retirements 254 [2] 926 [3] 993 [4]
Transfer of impairment from assets in course of construction (Note 14)   (434)  
Other movements [7]   (9)  
Impact of currency translation 605 (288) 173
Depreciation, End balance € (9,258) € (9,216) € (8,547)
[1] Space segment amount comprises satellites of EUR 1,571 million and right-of-use assets of EUR 438 million
[2] Satellites retired from service ASTRA 2A and Galaxy-23.
[3] Satellites ASTRA 2C, Ciel-2, and NSS-7 were de-orbited in 2024
[4] Sale of AMC-11
[5] Transfers from assets in the course of construction primarily related to the satellites mPOWER 7 and 8.
[6] Other movements include transfers between categories
[7] Other movements include presentational adjustments and transfers between categories