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Debt and Credit Facilities (Details)
1 Months Ended 9 Months Ended
Aug. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Aug. 31, 2023
EUR (€)
Dec. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Feb. 28, 2022
USD ($)
Dec. 31, 2021
USD ($)
Line of Credit Facility [Line Items]              
Commercial paper   $ 0          
Other   3,000,000   $ 7,000,000      
Total debt   12,690,000,000   13,048,000,000      
Less current maturities   2,308,000,000   1,191,000,000      
Less current maturities   10,382,000,000   11,857,000,000      
Unamortized debt issuance costs   45,000,000   52,000,000      
Borrowing capacity on existing facilities   2,160,000,000   2,162,000,000      
Fair value of senior unsecured notes   11,333,000,000   10,910,000,000      
Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Borrowings outstanding under credit facility   $ 0          
Senior Unsecured Notes 1.125% Due 2023              
Line of Credit Facility [Line Items]              
Stated interest rate   1.125%          
Unsecured debt   $ 580,000,000   585,000,000      
Senior Unsecured Notes, 0.600% Due 2023              
Line of Credit Facility [Line Items]              
Stated interest rate   0.60%          
Unsecured debt   $ 600,000,000   599,000,000      
Senior Unsecured Notes 3.375% due 2024              
Line of Credit Facility [Line Items]              
Stated interest rate   3.375%          
Unsecured debt   $ 598,000,000   596,000,000      
Senior Unsecured Notes, 0.250% Due 2024              
Line of Credit Facility [Line Items]              
Stated interest rate   0.25%          
Unsecured debt   $ 895,000,000   903,000,000      
Senior Unsecured Notes, 1.150% Due 2025              
Line of Credit Facility [Line Items]              
Stated interest rate   1.15%          
Unsecured debt   $ 648,000,000   647,000,000      
Senior Unsecured Notes 3.375% due 2025              
Line of Credit Facility [Line Items]              
Stated interest rate   3.375%          
Unsecured debt   $ 749,000,000   748,000,000      
Senior Unsecured Notes 3.500% due 2026              
Line of Credit Facility [Line Items]              
Stated interest rate   3.50%          
Unsecured debt   $ 996,000,000   995,000,000      
Senior Unsecured Notes 2.125% due 2027              
Line of Credit Facility [Line Items]              
Stated interest rate   2.125%          
Unsecured debt   $ 788,000,000   795,000,000      
Senior Unsecured Notes 3.650% due 2028              
Line of Credit Facility [Line Items]              
Stated interest rate   3.65%          
Unsecured debt   $ 598,000,000   597,000,000      
Senior Unsecured Notes 0.750% due 2029              
Line of Credit Facility [Line Items]              
Stated interest rate   0.75%          
Unsecured debt   $ 841,000,000   848,000,000      
Senior Unsecured Notes, 1.950% Due 2030              
Line of Credit Facility [Line Items]              
Stated interest rate   1.95%          
Unsecured debt   $ 992,000,000   991,000,000      
Senior Unsecured Notes 2.625% due 2030              
Line of Credit Facility [Line Items]              
Stated interest rate   2.625%          
Unsecured debt   $ 679,000,000   684,000,000      
Senior Unsecured Notes, 1.000% Due 2031              
Line of Credit Facility [Line Items]              
Stated interest rate   1.00%          
Unsecured debt   $ 783,000,000   790,000,000      
Senior Unsecured Notes 4.100% due 2043              
Line of Credit Facility [Line Items]              
Stated interest rate   4.10%          
Unsecured debt   $ 392,000,000   392,000,000      
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      
Term Loan              
Line of Credit Facility [Line Items]              
Repayments of debt $ 650,000,000            
Debt instrument, face amount           $ 1,500,000,000  
Long-term debt   $ 0   850,000,000      
Commercial Paper              
Line of Credit Facility [Line Items]              
Line of credit facility, maximum borrowing capacity         $ 2,250,000,000   $ 1,500,000,000
Debt instrument, maturity   397 days          
Floating Rate Senior Notes Due November 16, 2024              
Line of Credit Facility [Line Items]              
Unsecured debt   $ 527,000,000   $ 0      
Floating Rate Senior Notes Due November 16, 2024 | Senior Notes              
Line of Credit Facility [Line Items]              
Debt instrument, face amount | €     € 500,000,000        
Floating Rate Senior Notes Due November 16, 2024 | Euro Interbank Offered Rate | Senior Notes              
Line of Credit Facility [Line Items]              
Basis spread on variable rate (as a percent) 0.30%