XML 215 R82.htm IDEA: XBRL DOCUMENT v3.25.0.1
Goodwill and other intangible assets - Goodwill and intangible asset by segment (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill $ 8,587 $ 9,060
Goodwill    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 8,946 8,926
Alcon brand name    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 2,980 2,980
Acquired in-process research & development    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 775 739
Technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 28 60
Currently marketed products    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 1,744 2,018
Marketing know-how    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 2,622 2,861
Other (including software)    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 438 402
Operating segments | Surgical    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 4,064 4,260
Operating segments | Surgical | Goodwill    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 4,564 4,544
Operating segments | Surgical | Acquired in-process research & development    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 562 564
Operating segments | Surgical | Technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 28 60
Operating segments | Surgical | Currently marketed products    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 581 534
Operating segments | Surgical | Marketing know-how    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 2,622 2,861
Operating segments | Surgical | Other (including software)    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 271 241
Operating segments | Vision Care    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 1,543 1,820
Operating segments | Vision Care | Goodwill    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 4,382 4,382
Operating segments | Vision Care | Acquired in-process research & development    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 213 175
Operating segments | Vision Care | Currently marketed products    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 1,163 1,484
Operating segments | Vision Care | Other (including software)    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 167 161
Not allocated to segments    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill 2,980 2,980
Not allocated to segments | Alcon brand name    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets and goodwill $ 2,980 $ 2,980