Supplemental Cash Flow Information - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	$ 8,077	$ 8,524
Restricted cash included in other current assets	6	12
Restricted cash included in other assets	14	1
Cash, cash equivalents and restricted cash	$ 8,097	$ 8,537	$ 4,491	$ 10,336
Restricted Cash and Cash Equivalents, Current, Asset, Statement of Financial Position [Extensible Enumeration]	Other current assets
Restricted Cash and Cash Equivalents, Noncurrent, Asset, Statement of Financial Position [Extensible Enumeration]	Other assets