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Debt and Credit Facilities (Details) - USD ($)
1 Months Ended 6 Months Ended
May 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Line of Credit Facility [Line Items]      
Commercial paper   $ 0  
Total debt   12,222,000,000 $ 12,995,000,000
Less current maturities   2,095,000,000 2,094,000,000
Total long-term debt   10,127,000,000 10,901,000,000
Unamortized debt issuance costs   32,000,000 50,000,000
Borrowing capacity on existing facilities   2,159,000,000 2,160,000,000
Fair value of senior unsecured notes   11,253,000,000 12,252,000,000
Commercial Paper      
Line of Credit Facility [Line Items]      
Debt instrument, face amount   2,250,000,000  
Revolving Credit Facility      
Line of Credit Facility [Line Items]      
Borrowings outstanding under credit facility   $ 0  
Senior Unsecured Notes 3.375% Due May 15, 2024      
Line of Credit Facility [Line Items]      
Repayments of debt $ 600,000,000    
Stated interest rate 3.375% 3.375%  
Unsecured debt   $ 0 600,000,000
Senior Unsecured Notes, Floating, due November 16, 2024      
Line of Credit Facility [Line Items]      
Unsecured debt   $ 536,000,000 554,000,000
Senior Unsecured Notes, 0.250% Due 2024      
Line of Credit Facility [Line Items]      
Stated interest rate   0.25%  
Unsecured debt   $ 910,000,000 940,000,000
Senior Unsecured Notes, 1.150% Due 2025      
Line of Credit Facility [Line Items]      
Stated interest rate   1.15%  
Unsecured debt   $ 649,000,000 648,000,000
Senior Unsecured Notes 3.375% Due 2025      
Line of Credit Facility [Line Items]      
Stated interest rate   3.375%  
Unsecured debt   $ 749,000,000 749,000,000
Senior Unsecured Notes 3.500% Due 2026      
Line of Credit Facility [Line Items]      
Stated interest rate   3.50%  
Unsecured debt   $ 997,000,000 997,000,000
Senior Unsecured Notes, 2.125% Due 2027      
Line of Credit Facility [Line Items]      
Stated interest rate   2.125%  
Unsecured debt   $ 801,000,000 828,000,000
Senior Unsecured Notes 3.650% Due 2028      
Line of Credit Facility [Line Items]      
Stated interest rate   3.65%  
Unsecured debt   $ 598,000,000 598,000,000
Senior Unsecured Notes 4.850% Due 2028      
Line of Credit Facility [Line Items]      
Stated interest rate   4.85%  
Unsecured debt   $ 595,000,000 596,000,000
Senior Unsecured Notes, 3.375% Due 2028      
Line of Credit Facility [Line Items]      
Stated interest rate   3.375%  
Unsecured debt   $ 640,000,000 661,000,000
Senior Unsecured Notes 0.750% due 2029      
Line of Credit Facility [Line Items]      
Stated interest rate   0.75%  
Unsecured debt   $ 854,000,000 883,000,000
Senior Unsecured Notes, 1.950% Due 2030      
Line of Credit Facility [Line Items]      
Stated interest rate   1.95%  
Unsecured debt   $ 993,000,000 991,000,000
Senior Unsecured Notes, 2.625% due November 2030      
Line of Credit Facility [Line Items]      
Stated interest rate   2.625%  
Unsecured debt   $ 690,000,000 713,000,000
Senior Unsecured Notes 1.000% due 2031      
Line of Credit Facility [Line Items]      
Stated interest rate   1.00%  
Unsecured debt   $ 796,000,000 823,000,000
Senior Unsecured Notes 4.100% due 2043      
Line of Credit Facility [Line Items]      
Stated interest rate   4.10%  
Unsecured debt   $ 393,000,000 393,000,000
Senior Unsecured Notes 4.375% due 2044      
Line of Credit Facility [Line Items]      
Stated interest rate   4.375%  
Unsecured debt   $ 396,000,000 396,000,000
Senior Unsecured Notes 4.625% due 2046      
Line of Credit Facility [Line Items]      
Stated interest rate   4.625%  
Unsecured debt   $ 983,000,000 983,000,000
Senior Unsecured Notes, 2.900% due 2050      
Line of Credit Facility [Line Items]      
Stated interest rate   2.90%  
Unsecured debt   $ 642,000,000 $ 642,000,000
Commercial Paper      
Line of Credit Facility [Line Items]      
Debt instrument, maturity   397 days