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Accumulated Other Comprehensive Loss Attributable to Crown Holdings (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Increase (Decrease) in AOCI [Roll Forward]    
Balance at beginning of period $ 2,287 $ 2,330
Other comprehensive income / (loss) before reclassifications 147 (4)
Amounts reclassified from accumulated other comprehensive income 58 10
Other comprehensive income / (loss) 205 6
Balance at end of period 2,864 2,287
Defined benefit plans    
Increase (Decrease) in AOCI [Roll Forward]    
Balance at beginning of period (686) (768)
Other comprehensive income / (loss) before reclassifications (14) 57
Amounts reclassified from accumulated other comprehensive income 36 25
Other comprehensive income / (loss) 22 82
Balance at end of period (664) (686)
Foreign currency translation    
Increase (Decrease) in AOCI [Roll Forward]    
Balance at beginning of period (1,197) (1,158)
Other comprehensive income / (loss) before reclassifications 175 (39)
Amounts reclassified from accumulated other comprehensive income 0 0
Other comprehensive income / (loss) 175 (39)
Balance at end of period (1,022) (1,197)
Gains and losses on cash flow hedges    
Increase (Decrease) in AOCI [Roll Forward]    
Balance at beginning of period (9) 28
Other comprehensive income / (loss) before reclassifications (14) (22)
Amounts reclassified from accumulated other comprehensive income 22 (15)
Other comprehensive income / (loss) 8 (37)
Balance at end of period (1) (9)
Accumulated Other Comprehensive Loss    
Increase (Decrease) in AOCI [Roll Forward]    
Balance at beginning of period (1,892) (1,898)
Balance at end of period $ (1,687) $ (1,892)