Supplementary Information Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Mar. 31, 2024		Dec. 31, 2023	Mar. 31, 2023		Dec. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 1,505		$ 2,644	$ 1,646
Restricted Cash Equivalents	509		514	422
Total Cash, Cash Equivalents and Restricted Cash Equivalents	$ 2,014	[1]	$ 3,158	$ 2,068	[1]	$ 3,618

[1] See page 14 for reconciliation of cash and cash equivalents and restricted cash equivalents presented in interim Consolidated Balance Sheets to total cash, cash equivalents and restricted cash equivalents presented in the interim Consolidated Statements of Cash Flows.