v3.26.1
Benefit Plans - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 11, 2019
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
company
Defined Benefit Plan Disclosure [Line Items]            
Third party insurance companies | company           2
Mondelēz Global LLC Retirement Plan            
Defined Benefit Plan Disclosure [Line Items]            
Loss due to settlement     $ (282)      
Postretirement Benefit Plans            
Defined Benefit Plan Disclosure [Line Items]            
Net periodic pension (benefit)/cost   $ (5) (3) $ (10) $ (6)  
Postemployment Benefit Plans            
Defined Benefit Plan Disclosure [Line Items]            
Net periodic pension (benefit)/cost   4 6 8 11  
U.S. Plans | North America            
Defined Benefit Plan Disclosure [Line Items]            
Multiemployer plan, withdrawal obligation term 20 years          
Multiemployer plan, withdrawal liability $ 491 285   285    
Multiemployer plan, accreted interest on the long-term liability   2 3 4 5  
U.S. Plans | North America | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent            
Defined Benefit Plan Disclosure [Line Items]            
Multiemployer plan, withdrawal liability   17   17    
U.S. Plans | North America | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent            
Defined Benefit Plan Disclosure [Line Items]            
Multiemployer plan, withdrawal liability   268   268    
U.S. Plans | Pension Plans            
Defined Benefit Plan Disclosure [Line Items]            
Employer contributions       2    
Estimated future employer contributions over the remainder of the year   0   0    
Loss due to settlement   0 288 (3) 292  
Net periodic pension (benefit)/cost   0 287 (3) 288  
Non-U.S. Plans | Pension Plans            
Defined Benefit Plan Disclosure [Line Items]            
Employer contributions       46    
Estimated future employer contributions over the remainder of the year   31   31    
Loss due to settlement   0 0 0 0  
Net periodic pension (benefit)/cost   $ (9) $ (7) $ (17) $ (10)