Income Taxes - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Reconciliation of the Company's beginning and ending amount of unrecognized tax benefits
Balance at the beginning of the period	$ 722	$ 637
Additions based on tax positions related to the current year	52	39
Additions for tax positions of prior years	14	1
Reductions for tax positions of prior years	(12)	(5)
Settlements	0	(1)
Business combinations	(1)
Business combinations		61
Lapse of statute of limitations	(8)	(10)
Foreign currency translation	0	0
Balance at the end of the period	$ 767	$ 722