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Income Taxes (Details Textual) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Tax Contingency [Line Items]
Effective tax rates		18.70%	20.40%	20.50%	21.40%
Unrecognized tax benefits change as a result of potential resolutions of prior years' tax		$ 126		$ 126
Unrecognized tax benefits that, if recognized, could impact effective tax rate		99		99
Tax credit investments		$ 1,697	$ 1,577	$ 1,697	$ 1,577
Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
Additional estimated federal income tax payment	$ 185
Internal Revenue Service (IRS) \| Penalties
Income Tax Contingency [Line Items]
Additional estimated federal income tax payment	$ 50