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Debt (Tables)
 3 Months Ended
Mar. 31, 2023
Debt Disclosure [Abstract]  
Long-term debt outstanding Long-term debt outstanding was as follows:
 
Weighted
Average
Interest
Rate at
March 31, 2023
March 31, 2023March 31, 2022December 31, 2022
 (In thousands)
Senior Notes due on dates ranging from May 15, 2023 to June 15, 2062
4.32 %$2,258,500 $2,275,000 $2,258,500 
Commercial paper supported by revolving credit agreements6.18 %462,600 348,500 415,500 
Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 2029
7.32 %35,000 35,000 35,000 
Credit agreements due on dates ranging from December 19, 2024 to November 30, 20278.04 %89,144 85,800 130,000 
Term Loan Agreement due on September 3, 20323.64 %7,000 7,700 7,000 
Other notes due on dates ranging from January 1, 2024 to January 1, 2061
1.43 %1,561 2,445 2,253 
Less unamortized debt issuance costs6,453 6,605 6,542 
Less discount284 77 286 
Total long-term debt2,847,068 2,747,763 2,841,425 
Less current maturities78,031 147,953 78,031 
Net long-term debt$2,769,037 $2,599,810 $2,763,394 
Schedule of debt maturities Long-term debt maturities, which excludes unamortized debt issuance costs and discount, at March 31, 2023, were as follows:
Remainder of
2023
2024202520262027Thereafter
(In thousands)
Long-term debt maturities$78,031 $601,846 $177,802 $140,802 $111,452 $1,743,872