Income Taxes - Schedule of reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits, beginning of year	$ 1,191	$ 1,157	$ 2,343
Increases in tax positions for prior years	200	29	22
Decreases in tax positions for prior years	(4)	(33)	(1,233)
Increases in tax positions for current year	0	59	37
Lapse in statute of limitations	0	(21)	0
Settlements	0	0	(12)
Gross unrecognized tax benefits, end of year	$ 1,387	$ 1,191	$ 1,157