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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [Abstract] |
Changes in Carrying Amount of Service and Product Warranties | The changes in the carrying amount of service and product warranties are as follows (in millions):
Balance at December 31, 2019 |  | $ | 90 |
Net provisions for warranties issued during the year |  |  | 22 |
Amounts incurred |  |  | (26 | )
Currency translation adjustments |  |  | 1 |
Balance at December 31, 2020 |  | $ | 87 |
Net provisions for warranties issued during the year |  |  | 15 |
Amounts incurred |  |  | (24 | )
Currency translation adjustments |  |  | (5 | )
Balance at December 31, 2021 |  | $ | 73 |
Computation of Weighted Average Basic and Diluted Shares Outstanding | The following table sets forth the computation of weighted average basic and diluted shares outstanding (in millions, except per share data):
|  | Years Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to Company |  | $ | (250 | ) |  | $ | (2,542 | ) |  | $ | (6,095 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic—weighted average common shares outstanding |  |  | 386 |  |  |  | 384 |  |  |  | 382 |
Dilutive effect of employee stock options and other unvested stock awards |  |  | — |  |  |  | — |  |  |  | — |
Diluted outstanding shares |  |  | 386 |  |  |  | 384 |  |  |  | 382 |
Basic loss attributable to Company per share |  | $ | (0.65 | ) |  | $ | (6.62 | ) |  | $ | (15.96 | )
Diluted loss attributable to Company per share |  | $ | (0.65 | ) |  | $ | (6.62 | ) |  | $ | (15.96 | )
Cash dividends per share |  | $ | 0.05 |  |  | $ | 0.05 |  |  | $ | 0.20 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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