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Equity (Details 2) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]      
Share buyback program number of shares authorized to be repurchased 30,923,573 184,697,102 357,442,577
Share buyback program number of value authorized to be repurchased $ 409 $ 2,714 $ 6,036
Acquired Parent [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 18,251,159 1,500,000
Purchase of treasury shares $ 240 $ 22
Acquired By Wholly Owned Subsidiaries [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 12,672,414 1,500,000
Purchase of treasury shares $ 169 $ 22
Shares Buyback Program [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 30,923,573 3,000,000
Purchase of treasury shares $ 409 $ 44
Acquired Parent 1 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 93,638,352 87,779,900
Purchase of treasury shares $ 1,378 $ 1,375
Acquired By Wholly Owned Subsidiaries 1 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 88,058,750 90,847,177
Purchase of treasury shares $ 1,292 $ 1,410
Shares Buyback Program 1 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 181,697,102 178,627,077
Purchase of treasury shares $ 2,670 $ 2,785
Acquired Parent 2 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 81,855,600
Purchase of treasury shares $ 1,501
Acquired By Wholly Owned Subsidiaries 2 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 96,959,900
Purchase of treasury shares $ 1,750
Shares Buyback Program 2 [Member]      
IfrsStatementLineItems [Line Items]      
Number of shares repurchased 178,815,500
Purchase of treasury shares $ 3,251