Income Taxes - Reconciliation of the beginning and ending amount of unrecognized tax benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of the Company's beginning and ending amount of unrecognized tax benefits
Balance at the beginning of the period	$ 601	$ 347
Additions based on tax positions related to the current year	40	35
Additions for tax positions of prior years	2	226
Reductions for tax positions of prior years	(3)	(1)
Settlements	0	(1)
Business combinations	0	0
Lapse of statute of limitations	(3)	(5)
Foreign currency translation	0	0
Balance at the end of the period	$ 637	$ 601