OTHER - Reconciliation of Cash and Cash Equivalents and Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents		$ 10,549	$ 11,127
Restricted cash and cash equivalents	[1]	25	25
Cash included in assets held for sale	[1],[2]	4	0
Total cash and cash equivalents and restricted cash and cash equivalents as shown in the Unaudited Consolidated Statements of Cash Flows		$ 10,578	$ 11,152	$ 12,172	$ 10,582

[1] Included in "Other current assets" in the Consolidated Balance Sheets.

[2] See Note 15 for additional information related to assets held for sale.