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Accounts Receivable, Net (Schedule of Receivables, Net) (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
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Receivables [Abstract] |  |
Accounts receivable | $ 10,645 | $ 8,997
Allowance for expected credit losses | (530) | (254)
Total accounts receivable, net | $ 10,115 | $ 8,743

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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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