Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 6,910	$ 2,706	$ 14,141	$ 6,940
Net discrete tax benefit			(354)	2,400
Cash paid for income taxes, net of refunds	1,136	$ 2,004	6,774	$ 8,162	$ 10,920	$ 12,359
Tax contingencies	$ 5,900		$ 5,900		$ 5,900		$ 6,500