Income Taxes, Income Taxes Paid (Refunded) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes Paid
Income taxes paid, net	$ 843	$ 3,494	$ 3,288
U.S. [Member]
Income Taxes Paid
Income taxes paid, net	701	2,158	2,396
Foreign [Member]
Income Taxes Paid
Income taxes paid, net	$ 142	$ 1,336	$ 892