Supplementary Information Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Jun. 30, 2020		Dec. 31, 2019	Jun. 30, 2019		Jun. 01, 2019	Dec. 31, 2018	[2]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 2,809		$ 1,764	$ 2,077
Restricted Cash						$ 319
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Company	3,171	[1]	2,173	2,513	[1],[2]		$ 5,024
Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 362		$ 409	$ 436

[1] See page 19 for reconciliation of cash and cash equivalents and restricted cash presented in interim Condensed Consolidated Balance Sheets to total cash, cash equivalents and restricted cash presented in the interim Condensed Consolidated Statements of Cash Flows.

[2] The cash flows for the six months ended June 30, 2019 includes cash flows of EID's ECP and Specialty Products Entities.