Income Taxes - Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 12,301	$ 11,258
Deferred tax liabilities	(9,306)	(8,976)
Valuation allowance	(3,162)	(2,423)
Net deferred tax assets/(liabilities)	$ 167	$ 141