v3.26.1
Financial Instruments and Derivatives - Additional Information (Details)
$ in Thousands, MMBTU in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 28, 2026
USD ($)
Mar. 29, 2026
USD ($)
Jun. 29, 2025
USD ($)
Mar. 30, 2025
USD ($)
Jun. 28, 2026
USD ($)
MMBTU
t
Jun. 29, 2025
USD ($)
Dec. 31, 2025
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Apr. 30, 2024
USD ($)
Derivative [Line Items]                    
Interest expense $ 45,478   $ 64,367   $ 89,972 $ 120,394        
Other comprehensive income/(loss) (45,077) $ (59,977) $ 343,711 $ 178,140 (105,054) $ 521,851        
Total fair value of other derivatives not designated as hedging instruments (576)       (576)   $ (1,113)      
Cash Flow Hedging | Derivatives designated as hedging instruments:                    
Derivative [Line Items]                    
Fair value of commodity cash flow hedges, loss 1,433       1,433   1,683      
Commodity loss expected to be reclassified to the income statement during the next 12 months 1,341       1,341          
Fair value of foreign currency cash flow hedges, (loss) gain 1,826       1,826   49      
Foreign currency gain (loss) expected to be reclassified to the income statement during the next 12 months $ 1,826       $ 1,826          
Natural Gas Swaps | Derivatives not designated as hedging instruments:                    
Derivative [Line Items]                    
Anticipated usage percentage covered by a swap contract for 2026 69.00%       69.00%          
Approximate amount of commodity covered by swap contracts outstanding (in MMBTUs) | MMBTU         3.3          
Natural Gas Swaps | Cash Flow Hedging | Derivatives designated as hedging instruments:                    
Derivative [Line Items]                    
Approximate amount of commodity covered by swap contracts outstanding (in tons) | t         6,129          
Aluminum Swaps | Derivatives not designated as hedging instruments:                    
Derivative [Line Items]                    
Approximate amount of commodity covered by swap contracts outstanding (in tons) | t         972          
Aluminum Swaps | Cash Flow Hedging | Derivatives designated as hedging instruments:                    
Derivative [Line Items]                    
Anticipated usage percentage covered by a swap contract for 2026 49.10%       49.10%          
Anticipated usage percentage covered by a swap contract for 2027 8.10%       8.10%          
Currency Swap | Net investment hedge                    
Derivative [Line Items]                    
Purchase position of derivatives               $ 285,000 $ 1,500,000 $ 500,000
Interest expense $ 11,115       $ 21,958          
Gain (loss) on derivative used in net investment hedge, after tax         (144,671)   (207,203)      
Other comprehensive income/(loss)         (107,780)   (154,366)      
Net investment hedges, tax         $ 36,891   $ 52,837      
Currency Swap Maturing September 1, 2026 | Net investment hedge                    
Derivative [Line Items]                    
Purchase position of derivatives                 500,000  
Currency Swap Maturing September 1, 2029 | Net investment hedge                    
Derivative [Line Items]                    
Purchase position of derivatives                 500,000  
Currency Swap Maturing May 1, 2030 | Net investment hedge                    
Derivative [Line Items]                    
Purchase position of derivatives                 $ 500,000