v3.26.1
Long-Term Debt (Schedule Of Long-Term Debt) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Revolving credit and term loan borrowings $ 877 $ 351
Term Credit Agreement 1,129 0
Total Principal 6,423 5,227
Increase in Value of Debt Acquired 9 10
Unamortized Debt Discounts and Issuance Costs (34) (35)
Total Long-Term Debt 6,398 5,202
Current Portion 877 810
Long-Term Portion 5,521 4,392
5.65% Unsecured Notes [Member] | Unsecured Notes, Due May 15, 2028 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 700 $ 700
Debt Instrument, Interest Rate, Stated Percentage 5.65% 5.65%
Debt Instrument, Maturity Date May 15, 2028 May 15, 2028
5.375% Unsecured Notes [Member] | Unsecured Notes, Due Jan 1, 2026 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 0 $ 459
Debt Instrument, Interest Rate, Stated Percentage 5.375% 5.375%
Debt Instrument, Maturity Date Jan. 01, 2026 Jan. 01, 2026
8.125% Unsecured Notes [Member] | Unsecured Notes, Due September 15, 2030 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 300 $ 300
Debt Instrument, Interest Rate, Stated Percentage 8.125% 8.125%
Debt Instrument, Maturity Date Sep. 15, 2030 Sep. 15, 2030
7.20% Unsecured Notes [Member] | Unsecured Notes, Due November 1, 2031 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 350 $ 350
Debt Instrument, Interest Rate, Stated Percentage 7.20% 7.20%
Debt Instrument, Maturity Date Nov. 01, 2031 Nov. 01, 2031
7.375% Unsecured Notes [Member] | Unsecured Notes, Due November 1, 2031 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 500 $ 500
Debt Instrument, Interest Rate, Stated Percentage 7.375% 7.375%
Debt Instrument, Maturity Date Nov. 01, 2031 Nov. 01, 2031
6.25% Unsecured Notes [Member] | Unsecured Notes, Due July 15, 2033 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 600 $ 600
Debt Instrument, Interest Rate, Stated Percentage 6.25% 6.25%
Debt Instrument, Maturity Date Jul. 15, 2033 Jul. 15, 2033
6.50% Unsecured Notes [Member] | Unsecured Notes, Due August 15, 2034 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 599 $ 599
Debt Instrument, Interest Rate, Stated Percentage 6.50% 6.50%
Debt Instrument, Maturity Date Aug. 15, 2034 Aug. 15, 2034
6.50% Unsecured Notes [Member] | Unsecured Notes, Due February 1, 2038 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 430 $ 430
Debt Instrument, Interest Rate, Stated Percentage 6.50% 6.50%
Debt Instrument, Maturity Date Feb. 01, 2038 Feb. 01, 2038
6.625% Unsecured Notes [Member] | Unsecured Notes, Due August 15, 2037 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 390 $ 390
Debt Instrument, Interest Rate, Stated Percentage 6.625% 6.625%
Debt Instrument, Maturity Date Aug. 15, 2037 Aug. 15, 2037
5.15% Unsecured Notes [Member] | Unsecured Notes, Due November 15, 2041 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 148 $ 148
Debt Instrument, Interest Rate, Stated Percentage 5.15% 5.15%
Debt Instrument, Maturity Date Nov. 15, 2041 Nov. 15, 2041
7.10% Unsecured Notes [Member] | Unsecured Notes, Due July 15, 2053 [Member]    
Debt Instrument [Line Items]    
Unsecured Debt $ 400 $ 400
Debt Instrument, Interest Rate, Stated Percentage 7.10% 7.10%
Debt Instrument, Maturity Date Jul. 15, 2053 Jul. 15, 2053