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Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($) shares in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenue | $ 1,917,000,000 | $ 1,836,000,000 | $ 1,899,000,000
Cost of revenue | 731,000,000 | 817,000,000 | 944,000,000
Depreciation expense | 139,000,000 | 138,000,000 | $ 104,000,000
Impairment of long-lived assets | $ 0 |  |
Antidilutive options to purchase were excluded from computation of diluted earnings per share (in shares) |  |  | 115.5
Revision of Prior Period, Reclassification, Adjustment | Reclassification, From Recurring Services To Consulting Services |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenue |  | 108,000,000 | $ 111,000,000
Cost of revenue |  | 80,000,000 | 85,000,000
Revision of Prior Period, Reclassification, Adjustment | Reclassification, From Recurring Services To Perpetual Software Hardware And Other |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenue |  | 34,000,000 | 34,000,000
Cost of revenue |  | $ 26,000,000 | $ 26,000,000
Internal-Use Software |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Period capitalized on a straight-line basis when the asset is substantially ready for use | 3 years |  |
Minimum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Contract term | 1 month |  |
Maximum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Contract term | 5 years |  |
Equipment | Minimum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives (in years) | 3 years |  |
Equipment | Maximum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives (in years) | 5 years |  |
Building | Minimum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives (in years) | 25 years |  |
Building | Maximum |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives (in years) | 45 years |  |
Customer Rental Equipment |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives (in years) | 3 years |  |
Employee Stock Option |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Antidilutive options to purchase were excluded from computation of diluted earnings per share (in shares) | 0.2 | 2.0 | 2.0

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