v3.24.3
Restructuring Costs - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]          
Transaction and transformation $ 74 $ 113 $ 296 $ 265  
Transformation Program [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring, description     In the fourth quarter of 2021, the Company initiated a three-year ‘Transformation program’ designed to enhance operations, optimize technology and align its real estate footprint to its new ways of working    
Restructuring, Expected future effects     $ 1,175    
Transaction and transformation $ 67 $ 104 272 $ 231  
Transformation Program [Member] | Projected Annual Cost Savings by End of 2024 [Member]          
Restructuring Cost and Reserve [Line Items]          
Annual cost savings of program         $ 450
Transformation Program [Member] | Cumulative Costs [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring, Expected future effects     1,045    
Transformation Program [Member] | Capital Expenditures [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring, Expected future effects     $ 130