v3.25.2
Debt (Long-term Debt Instruments) (Details) - USD ($)
 1 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jul. 31, 2025
Dec. 31, 2024
Debt Instrument        
Finance leases $ 305,000,000 $ 305,000,000   $ 263,000,000
Total debt 13,385,000,000 13,385,000,000   13,406,000,000
Less short-term portion (1,287,000,000) (1,287,000,000)   (1,178,000,000)
Total long-term debt 12,098,000,000 12,098,000,000   12,228,000,000
Accounts receivable securitization facility expiring 2026 | Line of Credit        
Debt Instrument        
Long-term debt 1,184,000,000 1,184,000,000   1,085,000,000
Borrowing capacity, net of letters of credit $ 315,000,000 $ 315,000,000    
Interest rate at June 30, 2025 5.30% 5.30%    
Average month-end debt outstanding   $ 1,308,000,000    
Weighted-average interest rate on average debt outstanding 5.30% 5.30%    
Maximum month-end debt outstanding   $ 1,420,000,000    
Debt instrument, extension period 364 days      
Collateral amount $ 1,539,000,000 1,539,000,000    
$4.25 billion ABL facility expiring 2027 | Line of Credit        
Debt Instrument        
Maximum borrowing capacity 4,250,000,000 4,250,000,000    
Long-term debt 2,091,000,000 2,091,000,000   2,253,000,000
Borrowing capacity, net of letters of credit 2,133,000,000 2,133,000,000    
Letters of credit $ 22,000,000 $ 22,000,000    
Interest rate at June 30, 2025 5.50% 5.50%    
Average month-end debt outstanding   $ 1,670,000,000    
Weighted-average interest rate on average debt outstanding 5.50% 5.50%    
Maximum month-end debt outstanding   $ 2,096,000,000    
$4.25 billion ABL facility expiring 2027 | Line of Credit | Subsequent Event        
Debt Instrument        
Maximum borrowing capacity     $ 4,500,000,000  
Term loan facility expiring 2031        
Debt Instrument        
Long-term debt $ 979,000,000 $ 979,000,000   984,000,000
Annual repayment rate 1.00% 1.00%    
5 1/2 percent Senior Notes due 2027 | Senior notes        
Debt Instrument        
Stated interest rate 5.50% 5.50%    
Long-term debt $ 499,000,000 $ 499,000,000   499,000,000
3 7/8 percent Senior Secured Notes due 2027 | Senior notes        
Debt Instrument        
Stated interest rate 3.875% 3.875%    
Long-term debt $ 747,000,000 $ 747,000,000   747,000,000
4 7/8 percent Senior Notes due 2028 | Senior notes        
Debt Instrument        
Stated interest rate 4.875% 4.875%    
Long-term debt $ 1,668,000,000 $ 1,668,000,000   1,667,000,000
6 percent Senior Secured Notes due 2029 | Senior notes        
Debt Instrument        
Stated interest rate 6.00% 6.00%    
Long-term debt $ 1,491,000,000 $ 1,491,000,000   1,490,000,000
5 1/4 percent Senior Notes due 2030 | Senior notes        
Debt Instrument        
Stated interest rate 5.25% 5.25%    
Long-term debt $ 746,000,000 $ 746,000,000   746,000,000
4 percent Senior Notes due 2030 | Senior notes        
Debt Instrument        
Stated interest rate 4.00% 4.00%    
Long-term debt $ 746,000,000 $ 746,000,000   745,000,000
3 7/8 percent Senior Notes due 2031 | Senior notes        
Debt Instrument        
Stated interest rate 3.875% 3.875%    
Long-term debt $ 1,093,000,000 $ 1,093,000,000   1,092,000,000
3 3/4 percent Senior Notes due 2032 | Senior notes        
Debt Instrument        
Stated interest rate 3.75% 3.75%    
Long-term debt $ 745,000,000 $ 745,000,000   745,000,000
6 1/8 percent Senior Notes due 2034 | Senior notes        
Debt Instrument        
Stated interest rate 6.125% 6.125%    
Long-term debt $ 1,091,000,000 $ 1,091,000,000   $ 1,090,000,000
Term loan facility | Line of Credit        
Debt Instrument        
Borrowing capacity, net of letters of credit $ 0 $ 0    
Interest rate at June 30, 2025 6.10% 6.10%    
Average month-end debt outstanding   $ 990,000,000    
Weighted-average interest rate on average debt outstanding 6.10% 6.10%    
Maximum month-end debt outstanding   $ 993,000,000    
4 7/8 percent Senior Notes due 2028, one | Senior notes        
Debt Instrument        
Long-term debt $ 1,664,000,000 1,664,000,000    
4 7/8 percent Senior Notes due 2028, two | Senior notes        
Debt Instrument        
Long-term debt $ 4,000,000 $ 4,000,000