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Income Taxes (Details Textual) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Millions	Dec. 31, 2024	Mar. 31, 2026	Mar. 31, 2025
Income Tax Contingency [Line Items]
Effective tax rates		21.40%	22.40%
Tax credit investments		$ 1,832	$ 1,699
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