Amounts in Paragraphs - Income Taxes (Details 6) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	17.50%	16.80%	12.40%
Significant matters affecting comparability	(0.40%)	(0.40%)	(3.80%)
Income Taxes Receivable	$ 924	$ 517
Operating Loss Carryforwards	584
Tax Credit Carryforward, Valuation Allowance	358
Operating Loss Carryforwards, Valuation Allowance	62
Change in Federal and foreign income tax expense	$ 44	$ 552
Change in Federal and foreign income tax expense, percent	5.00%	190.00%
Corporate Alternative Minimum Tax
Income Tax Disclosure [Abstract]
Tax Credit Carryforward, Amount	$ 187
Effective Income Tax Rate Reconciliation [Line Items]
Tax Credit Carryforward, Amount	187
Other Tax Credits
Income Tax Disclosure [Abstract]
Tax Credit Carryforward, Amount	717
Effective Income Tax Rate Reconciliation [Line Items]
Tax Credit Carryforward, Amount	717
OBBBA
Income Tax Disclosure [Abstract]
Increase (Decrease) in Income Taxes Receivable	319
Increase (Decrease) in Deferred Income Taxes	387
Effective Income Tax Rate Reconciliation [Line Items]
Increase (Decrease) in Income Taxes Receivable	$ 319