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Commitments and Contingencies (Details) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 69 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 02, 2022 USD ($) numberOfClaims patent | Feb. 28, 2022 USD ($) | Jun. 08, 2021 USD ($) | May 24, 2021 USD ($) | May 13, 2021 USD ($) | Oct. 21, 2019 USD ($) | Jan. 31, 2014 USD ($) | Sep. 30, 2022 USD ($) | Oct. 01, 2021 USD ($) | Sep. 30, 2022 USD ($) | Oct. 01, 2021 USD ($) | Sep. 30, 2012 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of patent, claim | patent | 6 |  |  |  |  |  |  |  |  |  |  |
Litigation settlement payment |  |  | $ 70,000,000 | $ 70,000,000 |  |  |  |  |  |  |  |
Loss contingency, insurance recoveries |  |  | $ 67,100,000 |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  | $ 748,000,000 | $ 692,000,000 | $ 1,455,000,000 | $ 1,378,000,000 |
322 Patents Remained in Suit |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims, number | numberOfClaims | 2 |  |  |  |  |  |  |  |  |  |  |
115 Patents Remained in Suit |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims, number | numberOfClaims | 3 |  |  |  |  |  |  |  |  |  |  |
Trustees of the University of Columbia in the City of New York v. NortonLifeLock |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement payment | $ 185,000,000 |  |  |  |  |  |  |  |  |  |  |
Loss contingency, damages awarded, value | $ 0 |  |  |  |  |  |  |  |  |  |  |
Estimated loss (low end) |  |  |  |  |  |  |  | 233,000,000 |  | 233,000,000 |  |
Trustees of the University of Columbia in the City of New York v. NortonLifeLock | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Estimated litigation payment as times of actual damages proven | 1 |  |  |  |  |  |  |  |  |  |  |
Trustees of the University of Columbia in the City of New York v. NortonLifeLock | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Estimated litigation payment as times of actual damages proven | 3 |  |  |  |  |  |  |  |  |  |  |
GSA Schedule Contract |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement payment |  | $ 5,000,000 |  |  | $ 500,000 |  |  |  |  |  |  |
Estimated loss (low end) |  |  |  |  |  |  |  | $ 50,000,000 |  | $ 50,000,000 |  |
Net revenues |  |  |  |  |  |  |  |  |  |  |  | $ 222,000,000
Estimated damage |  |  |  |  |  | $ 1,090,000,000 | $ 145,000,000 |  |  |  |  |
GSA Schedule Contract | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Estimated litigation payment as times of actual damages proven |  |  |  |  |  |  |  | 1 |  | 1 |  |
GSA Schedule Contract | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Estimated litigation payment as times of actual damages proven |  |  |  |  |  |  |  | 3 |  | 3 |  |

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