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Debt and Credit Facilities - (Tables)
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Long-Term Debt
Long-Term Debt 
December 3120232022
4.0% senior notes due 2024
313 312 
1.75% senior convertible notes due 2024
1,000 1,000 
6.5% debentures due 2025
70 70 
7.5% debentures due 2025
252 252 
4.6% senior notes due 2028
695 694 
6.5% debentures due 2028
25 24 
4.6% senior notes due 2029
802 803 
2.3% senior notes due 2030
894 893 
2.75% senior notes due 2031
845 845 
5.60% senior notes due 2032
595 595 
6.625% senior notes due 2037
38 38 
5.5% senior notes due 2044
397 397 
5.22% debentures due 2097
93 92 
6,019 6,015 
Adjustments for unamortized gains on interest rate swap terminations(1)(1)
Less: current portion(1,313)(1)
Long-term debt$4,705 $6,013