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Accounts Receivable, Net (Allowance for Credit Loss) $ in Millions | 3 Months Ended
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Mar. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Accounts Receivable, Allowance for Credit Loss | $ (389)
Current period provision for expected credit losses1 | (63)
Write-offs charged against the allowance for expected credit losses | 5
Other2 | (50)
Accounts Receivable, Allowance for Credit Loss | (497)
ASU 2016-13 [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Other2 | 64
COVID-19 [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Current period provision for expected credit losses1 | $ 38

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