Supplemental Cash Flow Information - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Transfer from investments	$ 77	$ 64	$ 185
Non-cash investing activities, right-of-use asset, property and equipment obtained	19
Non-cash investing activities, acquisition-related contingent payouts	8
Non-cash investing activities	18	15
Non-cash investing activities, debt assumed		123
Non-cash financing activities related to the issuance of shares for vested restricted stock units	29	39	65
Operating lease, payments	113	130	163
Right-of-use asset obtained in exchange for operating lease liability	$ 69	$ 30	$ 26