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Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Earnings before income taxes $ 3,712 $ 4,623 $ 7,775
U.S. statutory income tax rate 21.00% 21.00% 21.00%
State income taxes 2.00% 1.00% 1.00%
Income tax credits (2.00%) (3.00%) 0.00%
Other 0.00% (1.00%) 0.00%
Effective income tax rate 21.00% 18.00% 22.00%