Parent Company (Interest Paid and Income Tax Refunds (Payments)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Interest paid	$ 13,052	$ 9,451	$ 2,172
Income Tax Refunds/ (Payments)	45	832	26
Parent Company
Condensed Financial Statements, Captions [Line Items]
Interest paid	1,216	683	314
Income Tax Refunds/ (Payments)	$ 329	$ 1,080	$ (255)