v3.26.1
PROPERTY AND EQUIPMENT - Schedule Of Quantitative Information About Right-Of-Use Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at beginning of period $ 3,016 $ 2,898
Additions 1,309 867
Disposals (35) (28)
Depreciation charge for the year (578) (529)
Divestment and reclassification as held for sale (97) (81)
Impairment (12) (6)
Impairment reversal 3 3
Transfers (3) (22)
Modifications and reassessments 127 103
Translation adjustment 27 (189)
Property, plant and equipment including right-of-use assets at end of period 3,757 3,016
Cost    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period 7,529  
Accumulated depreciation and impairment    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period (3,772)  
Right-of-use assets    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at beginning of period 861 821
Additions 540 181
Disposals (28) (12)
Depreciation charge for the year (193) (155)
Divestment and reclassification as held for sale (29) (7)
Impairment (1) (1)
Impairment reversal 1 1
Transfers (1) (10)
Modifications and reassessments 127 103
Translation adjustment 7 (60)
Property, plant and equipment including right-of-use assets at end of period 1,284 861
Right-of-use assets | Cost    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period 1,852  
Right-of-use assets | Accumulated depreciation and impairment    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period (568)  
Telecommunication equipment | Right-of-use assets    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at beginning of period 776 747
Additions 504 149
Disposals (23) (8)
Depreciation charge for the year (167) (133)
Divestment and reclassification as held for sale (29) (4)
Impairment (1) (1)
Impairment reversal 1 1
Transfers   (9)
Modifications and reassessments 116 87
Translation adjustment 5 (53)
Property, plant and equipment including right-of-use assets at end of period 1,181 776
Telecommunication equipment | Right-of-use assets | Cost    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period 1,687  
Telecommunication equipment | Right-of-use assets | Accumulated depreciation and impairment    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period (506)  
Land, buildings and constructions | Right-of-use assets    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at beginning of period 68 61
Additions 28 22
Disposals (4) (4)
Depreciation charge for the year (20) (17)
Divestment and reclassification as held for sale 0 (3)
Impairment 0 0
Impairment reversal 0 0
Transfers   (1)
Modifications and reassessments 11 16
Translation adjustment 2 (6)
Property, plant and equipment including right-of-use assets at end of period 85 68
Land, buildings and constructions | Right-of-use assets | Cost    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period 136  
Land, buildings and constructions | Right-of-use assets | Accumulated depreciation and impairment    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period (51)  
Office and other equipment | Right-of-use assets    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at beginning of period 17 13
Additions 8 10
Disposals (1) 0
Depreciation charge for the year (6) (5)
Divestment and reclassification as held for sale 0 0
Impairment 0 0
Impairment reversal 0 0
Transfers   0
Modifications and reassessments 0 0
Translation adjustment 0 (1)
Property, plant and equipment including right-of-use assets at end of period 18 $ 17
Office and other equipment | Right-of-use assets | Cost    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period 29  
Office and other equipment | Right-of-use assets | Accumulated depreciation and impairment    
Disclosure of quantitative information about right-of-use assets [line items]    
Property, plant and equipment including right-of-use assets at end of period $ (11)