Income Taxes, Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Narrative (Textual)
Increase in valuation allowance	$ 149
Unrecognized tax benefits if recognized that would reduce the effective tax rate	126	$ 190
Cumulative undistributed earnings of foreign subsidiaries	7,100
Foreign earnings repatriated	1,400
Foreign earnings repatriated, accrued withholding tax	$ 45