v3.26.1
Intangible Assets - Schedule Of Reconciliation Of Changes In Intangible Assets And Goodwill (Detail) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance € 908 € 920  
Ending Balance 2,810 908 € 920
Orbital slot licence rights (indefinite- life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance   326  
Ending Balance     326
Goodwill [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 143 140  
Ending Balance 1,808 143 140
Orbital slot licence rights (definite life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 477 107  
Ending Balance 545 477 107
Customer Relationship [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 226 265  
Ending Balance 306 226 265
Other Definite Life Intangibles [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 48 60  
Ending Balance 114 48 60
Internally Generated Development Costs [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 14 22  
Ending Balance 37 14 22
Gross Carrying Amount [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 3,197 3,274 6,017
Additions 26 23 22
Business combination 2,160    
Retirement (28) (238) [1] (2,611) [2]
Transfers from assets under construction 25 18 20
Impact of currency translation (312) 120 (174)
Ending Balance 5,068 3,197 3,274
Gross Carrying Amount [Member] | Orbital slot licence rights (indefinite- life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance   2,124 2,193
Transfers to other definite life intangibles   (2,124)  
Impact of currency translation     (69)
Ending Balance     2,124
Gross Carrying Amount [Member] | Goodwill [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 143 140 2,740
Business combination 1,700    
Retirement [2]     (2,500)
Impact of currency translation (35) 3 (100)
Ending Balance 1,808 143 140
Gross Carrying Amount [Member] | Orbital slot licence rights (definite life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 2,406 234 234
Additions   1  
Business combination 242    
Retirement [1]   (80)  
Transfers to other definite life intangibles   2,134  
Impact of currency translation (231) 117  
Ending Balance 2,417 2,406 234
Gross Carrying Amount [Member] | Customer Relationship [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 287 292 292
Business combination 132    
Impact of currency translation (36) (5)  
Ending Balance 383 287 292
Gross Carrying Amount [Member] | Other Definite Life Intangibles [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 347 462 507
Additions 12 4 2
Business combination 86    
Retirement (28) (158) [1] (111) [2]
Transfers to other definite life intangibles 8 (10)  
Transfers from assets under construction 7 45 69
Impact of currency translation (9) 4 (5)
Ending Balance 423 347 462
Gross Carrying Amount [Member] | Internally Generated Development Costs [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 14 22 51
Additions 14 18 20
Transfers to other definite life intangibles (8)    
Transfers from assets under construction 18 (27) (49)
Impact of currency translation (1) 1  
Ending Balance 37 14 22
Accumulated Depreciation, Amortisation And Impairment [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (2,289) (2,354) (1,726)
Retirement 28 238 [1] 2,611 [2]
Impact of currency translation 216 (110) 75
Amortisation (140) (156) (89)
Impairment expense (99)    
Impairment reversals 26 93 (3,225)
Ending Balance (2,258) (2,289) (2,354)
Accumulated Depreciation, Amortisation And Impairment [Member] | Orbital slot licence rights (indefinite- life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance   (1,798) (139)
Transfers to other definite life intangibles   1,798  
Impact of currency translation     18
Impairment reversals     (1,677)
Ending Balance     (1,798)
Accumulated Depreciation, Amortisation And Impairment [Member] | Goodwill [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance     (1,002)
Retirement [2]     2,500
Impact of currency translation     50
Impairment reversals     (1,548)
Accumulated Depreciation, Amortisation And Impairment [Member] | Orbital slot licence rights (definite life) [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (1,929) (127) (113)
Retirement [1]   80  
Transfers to other definite life intangibles   (1,798)  
Impact of currency translation 201 (105) (1)
Amortisation (71) (72) (13)
Impairment expense (99)    
Impairment reversals 26 93  
Ending Balance (1,872) (1,929) (127)
Accumulated Depreciation, Amortisation And Impairment [Member] | Customer Relationship [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (61) (27) (8)
Impact of currency translation 9 (3) 0
Amortisation (25) (31) (19)
Ending Balance (77) (61) (27)
Accumulated Depreciation, Amortisation And Impairment [Member] | Other Definite Life Intangibles [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (299) (402) (464)
Retirement 28 158 [1] 111 [2]
Impact of currency translation 6 (2) 8
Amortisation (44) (53) (57)
Ending Balance € (309) € (299) € (402)
[1] Orbital slot retirements related to 85°W, 105.5°W, 68.5°W, 65°E, 63°E, and certain rights at 129°W.
[2] Goodwill retirements of the period relate primarily to those elements of brought forward goodwill from which no future economic benefits are expected. This includes all goodwill associated with the GEO North America, GEO International and MEO cash-generating units. Similarly, the retirements of fully amortised other definite life intangibles represent items from which no future economic benefits are expected.