v3.26.1
Accumulated Other Comprehensive Loss Attributable to Crown Holdings (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Balance at beginning of period $ 3,366 $ 3,412 $ 3,372 $ 3,172 $ 3,366 $ 3,372 $ 3,480 $ 3,228
Total other comprehensive income 37 (17) 43 (35) 20 8    
Balance at end of period 3,366 3,412 3,372 3,172 3,366 3,372    
Total                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Balance at beginning of period (1,359) (1,399) (1,456) (1,497) (1,359) (1,456) (1,382) (1,462)
Other comprehensive income / (loss) before reclassifications         22 4    
Amounts reclassified from accumulated other comprehensive income         1 2    
Total other comprehensive income 40 (17) 41 (35) 23 6    
Balance at end of period (1,359) $ (1,399) (1,456) $ (1,497) (1,359) (1,456)    
Defined benefit plans                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Balance at beginning of period (224)   (226)   (224) (226) (228) (230)
Other comprehensive income / (loss) before reclassifications         0 0    
Amounts reclassified from accumulated other comprehensive income         4 4    
Total other comprehensive income         4 4    
Balance at end of period (224)   (226)   (224) (226)    
Foreign currency translation                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Balance at beginning of period (1,153)   (1,232)   (1,153) (1,232) (1,169) (1,236)
Other comprehensive income / (loss) before reclassifications         16 4    
Amounts reclassified from accumulated other comprehensive income         0 0    
Total other comprehensive income         16 4    
Balance at end of period (1,153)   (1,232)   (1,153) (1,232)    
Gains and losses on cash flow hedges                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Balance at beginning of period 18   2   18 2 $ 15 $ 4
Other comprehensive income / (loss) before reclassifications         6 0    
Amounts reclassified from accumulated other comprehensive income         (3) (2)    
Total other comprehensive income         3 (2)    
Balance at end of period $ 18   $ 2   $ 18 $ 2