Condensed Consolidated Statements of Cash Flows Condensed Consolidated Statement of Cash Flows (Supplemental Disclosure) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Cash and cash equivalents	$ 2,022	$ 217	$ 277
Restricted cash and restricted cash equivalents included in Other current assets	214	346	357
Restricted cash equivalents included in Other long-term assets	46	43	43
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 2,282	$ 607	$ 676	$ 829