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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | Schedule II – Valuation and Qualifying Accounts (in millions)
Description |  | Balance at Beginning of Period |  | Expense (Benefit) |  | Other Adjustments(a) |  | Deductions |  | Balance at End of Period
Allowance for Doubtful Accounts: |  |  |  |  |  |  |  |  |  |
Year Ended December 31, |  |  |  |  |  |  |  |  |  |
2021 |  | $ | 60 |  |  | $ | 107 |  |  | $ | (2) |  |  | $ | (81) |  |  | $ | 84 |
2020 |  | 52 |  |  | 73 |  |  | 3 |  |  | (68) |  |  | 60 |
2019 |  | 39 |  |  | 41 |  |  | — |  |  | (28) |  |  | 52 |
Tax Valuation Allowance: |  |  |  |  |  |  |  |  |  |
Year Ended December 31, |  |  |  |  |  |  |  |  |  |
2021 |  | $ | 207 |  |  | $ | (35) |  |  | $ | (3) |  |  | $ | — |  |  | $ | 169 |
2020 |  | 214 |  |  | (1) |  |  | (6) |  |  | — |  |  | 207 |
2019 |  | 311 |  |  | (95) |  |  | (2) |  |  | — |  |  | 214 |
__________ (a)Other Adjustments relate to currency translation adjustments.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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