Quarterly report [Sections 13 or 15(d)]

DEBT AND FINANCING ARRANGEMENTS - Carrying Value of Outstanding Debt (Details)

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DEBT AND FINANCING ARRANGEMENTS - Carrying Value of Outstanding Debt (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Principal Amount $ 24,628,000,000  
Finance lease obligations 1,085,000,000 $ 781,000,000
Total debt 24,386,000,000 24,127,000,000
Less: current maturities (637,000,000) (608,000,000)
Long-term debt $ 23,749,000,000 23,519,000,000
Senior notes | 2.400% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 2.40%  
Principal Amount $ 500,000,000  
Long-term debt $ 500,000,000 500,000,000
Senior notes | 3.050% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.05%  
Principal Amount $ 1,000,000,000  
Long-term debt $ 998,000,000 998,000,000
Senior notes | 3.400% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.40%  
Principal Amount $ 750,000,000  
Long-term debt $ 748,000,000 748,000,000
Senior notes | 2.500% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 2.50%  
Principal Amount $ 400,000,000  
Long-term debt $ 399,000,000 399,000,000
Senior notes | 4.450% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.45%  
Principal Amount $ 750,000,000  
Long-term debt $ 747,000,000 747,000,000
Senior notes | 4.650% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.65%  
Principal Amount $ 500,000,000  
Long-term debt $ 498,000,000 498,000,000
Senior notes | 4.875% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.875%  
Principal Amount $ 900,000,000  
Long-term debt $ 896,000,000 896,000,000
Senior notes | 5.150% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.15%  
Principal Amount $ 900,000,000  
Long-term debt $ 894,000,000 894,000,000
Senior notes | 5.250% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.25%  
Principal Amount $ 1,250,000,000  
Long-term debt $ 1,240,000,000 1,240,000,000
Senior notes | 6.200% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 6.20%  
Principal Amount $ 1,500,000,000  
Long-term debt $ 1,487,000,000 1,487,000,000
Senior notes | 5.200% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.20%  
Principal Amount $ 500,000,000  
Long-term debt $ 495,000,000 495,000,000
Senior notes | 4.875% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.875%  
Principal Amount $ 500,000,000  
Long-term debt $ 492,000,000 492,000,000
Senior notes | 3.625% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.625%  
Principal Amount $ 375,000,000  
Long-term debt $ 369,000,000 369,000,000
Senior notes | 3.400% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.40%  
Principal Amount $ 500,000,000  
Long-term debt $ 493,000,000 493,000,000
Senior notes | 3.750% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.75%  
Principal Amount $ 1,150,000,000  
Long-term debt $ 1,138,000,000 1,138,000,000
Senior notes | 4.250% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.25%  
Principal Amount $ 750,000,000  
Long-term debt $ 744,000,000 744,000,000
Senior notes | 3.400% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.40%  
Principal Amount $ 700,000,000  
Long-term debt $ 689,000,000 689,000,000
Senior notes | 5.300% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.30%  
Principal Amount $ 1,250,000,000  
Long-term debt $ 1,232,000,000 1,232,000,000
Senior notes | 5.050% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.05%  
Principal Amount $ 1,100,000,000  
Long-term debt $ 1,082,000,000 1,083,000,000
Senior notes | 5.500% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.50%  
Principal Amount $ 1,100,000,000  
Long-term debt $ 1,087,000,000 1,087,000,000
Senior notes | 5.950% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.95%  
Principal Amount $ 1,250,000,000  
Long-term debt $ 1,232,000,000 1,232,000,000
Senior notes | 5.600% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.60%  
Principal Amount $ 600,000,000  
Long-term debt $ 590,000,000 590,000,000
Senior notes | 6.050% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 6.05%  
Principal Amount $ 1,000,000,000  
Long-term debt 985,000,000 985,000,000
Senior notes | Floating-rate senior notes    
Debt Instrument [Line Items]    
Principal Amount 1,883,000,000  
Long-term debt $ 1,861,000,000 1,863,000,000
Senior notes | 7.620% debentures    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 7.62%  
Principal Amount $ 276,000,000  
Long-term debt $ 279,000,000 279,000,000
Pound Sterling notes | 5.500% notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.50%  
Principal Amount $ 88,000,000  
Long-term debt $ 87,000,000 89,000,000
Pound Sterling notes | 5.125% notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 5.125%  
Principal Amount $ 600,000,000  
Long-term debt $ 571,000,000 585,000,000
Euro Senior Notes | 1.000% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 1.00%  
Principal Amount $ 575,000,000  
Long-term debt $ 574,000,000 587,000,000
Euro Senior Notes | 1.500% senior notes    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 1.50%  
Principal Amount $ 575,000,000  
Long-term debt 573,000,000 586,000,000
Facility notes and bonds    
Debt Instrument [Line Items]    
Principal Amount 321,000,000  
Long-term debt $ 321,000,000 $ 321,000,000