Investments - Schedule of Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Investments [Abstract]
Time deposits	$ 15,590		$ 15,590		$ 11,960
Equity method investments	998		998		948
Available-for-sale debt investments	529		529		517
Equity and other investments	35		35		34
Restricted cash & cash equivalents	709	$ 21	709	$ 21	21
Total	17,861		17,861		$ 13,480
Dividends received	3	$ 4	13	$ 41
Escrow deposit	$ 689		$ 689