Supplementary Information Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020	[1]	Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and Cash Equivalents	$ 3,191		$ 4,459
Cash, Cash Equivalents, and Restricted Cash	3,618		4,836
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	3,618	[1]	4,836	[1]	$ 3,873		$ 2,173
Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 427		$ 377

[1] See page F-24 for reconciliation of cash and cash equivalents and restricted cash equivalents presented in the Consolidated Balance Sheets to total cash, cash equivalents and restricted cash equivalents presented in the Consolidated Statements of Cash Flows.