ACQUISITIONS AND OTHER ARRANGEMENTS - Cheetah Medical, Inc. Narrative (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Oct. 25, 2019	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
Acquisitions, net of cash acquired, and investments			$ 466	$ 186
Cheetah Medical, Inc.
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired	100.00%
Acquisitions, net of cash acquired, and investments	$ 195
Contingent consideration arrangements	40
Contingent consideration	$ 18
Post-close payment received		$ 7
Deferred tax assets, adjustment		$ 20