OTHER FINANCIAL INFORMATION - Accounts Receivable, Net (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other Financial Information [Abstract]
Accounts receivable	$ 4,908	$ 5,560
Less: chargebacks	625	552
Less: cash discounts and other	77	72
Less: allowances for credit losses	57	44
Accounts receivable, net	$ 4,149	$ 4,892

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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