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Accounting Policies - Summary of Balance of Allowances for Credit Losses, Doubtful Accounts with Accounts Receivable and Changes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Balance | $ 143 | $ 126
Current period provision | 7 | 25
Write-offs charged against the allowance | (4) | (4)
Translation | 3 | (4)
Balance | 149 | 143
Americas |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Balance | 41 | 38
Current period provision | 1 | 8
Write-offs charged against the allowance | (1) | (2)
Translation | 0 | (3)
Balance | 41 | 41
Europe, Middle East & Africa |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Balance | 91 | 78
Current period provision | 5 | 16
Write-offs charged against the allowance | (3) | (2)
Translation | 3 | (1)
Balance | 96 | 91
Asia Pacific |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Balance | 11 | 10
Current period provision | 1 | 1
Write-offs charged against the allowance | 0 | 0
Translation | 0 | 0
Balance | $ 12 | $ 11

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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
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