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Debt and Credit Facilities (Tables)
 3 Months Ended
Mar. 31, 2024
Long-Term Debt, Unclassified [Abstract]  
Schedule of Long-term Debt Instruments
Summary of Total DebtMarch 31December 31
20242023
RateDue
Senior unsecured notes:
3.375%May 15, 2024$600 $600 
FloatingNovember 16, 2024540 554 
0.250%December 3, 2024918 940 
1.150%June 15, 2025649 648 
3.375%November 1, 2025749 749 
3.500%March 15, 2026997 997 
2.125%November 30, 2027808 828 
3.650%March 7, 2028598 598 
4.850%December 8, 2028596 596 
3.375%December 11, 2028645 661 
0.750%March 1, 2029861 883 
1.950%June 15, 2030991 991 
2.625%November 30, 2030696 713 
1.000%December 3, 2031803 823 
4.100%April 1, 2043393 393 
4.375%May 15, 2044396 396 
4.625%March 15, 2046983 983 
2.900%June 15, 2050642 642 
Total debt$12,865 $12,995 
Less current maturities2,058 2,094 
Total long-term debt$10,807 $10,901 
March 31December 31
20242023
Unamortized debt issuance costs$34 $50 
Borrowing capacity on existing facilities$2,159 $2,160 
Fair value of senior unsecured notes$12,008 $12,252