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Gain Contingency, Patents Found Infringed, Number, Other

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Legal Proceedings [Line Items]

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Litigation Settlement, Amount Awarded from Other Party, Pre Interest

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Litigation Settlement, Amount Awarded from Other Party, Royalty Rate, Per Device

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Litigation Settlement, Amount, Percentage of Total

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Litigation Settlement, Awarded from the Other Party, Interest and Legal Fees

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Loss Contingency Claims Resolved

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Loss Contingency, Estimate of Possible Loss, Amount Deferred

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Loss Contingency, Percentage of Damages Covered, Excess of Sixty Four Million Settlement Amount

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- Definition

Number Of Lawsuits

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Royalty Rate, Percentage

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Number of entity's patents that another entity was found to have infringed.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Amount awarded from other party in judgment or settlement of litigation.

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Amount of loss contingency liability.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Cash received for the settlement of litigation during the current period.

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Contingencies (Detail)								3 Months Ended		9 Months Ended
Contingencies (Detail)	Oct. 30, 2020 USD ($)	May 22, 2020 USD ($)	Mar. 13, 2020 USD ($)	Nov. 22, 2019 USD ($)	Aug. 30, 2018 USD ($)	Apr. 10, 2018 USD ($)	Sep. 29, 2017 USD ($)	Jul. 03, 2020 USD ($)	Apr. 30, 2012 lawsuit legalMatter	Oct. 02, 2020 USD ($)	Jul. 23, 2020	Jul. 16, 2020 USD ($)	Dec. 10, 2019 USD ($)	Nov. 10, 2015 USD ($)
Securities Class Actions
Legal Proceedings [Line Items]
Number of lawsuits \| lawsuit									3
Number of lawsuits, withdrawn \| legalMatter									1
Number of lawsuits, consolidated \| legalMatter									2
MSA Venture
Legal Proceedings [Line Items]
Estimate of possible loss										$ 64,000,000			$ 29,000,000	$ 64,000,000
Estimate of possible loss, amount deferred										32,000,000
Contingency accrual										$ 42,000,000
Lockheed Martin
Legal Proceedings [Line Items]
Estimate of possible loss												$ 56,000,000
Lockheed Martin \| MSA Venture
Legal Proceedings [Line Items]
Percentage of damages covered, between $38 million and $64 million (percentage)										100.00%
Percentage of damages covered, excess of $64 million settlement amount (percentage)										50.00%
Leidos
Legal Proceedings [Line Items]
Proceeds from legal settlements		$ 85,000,000
Gain on legal settlement								$ 81,000,000
Litigation settlement, percentage of total (percentage)										25.00%
Leidos \| MSA Venture
Legal Proceedings [Line Items]
Estimate of possible loss										$ 38,000,000
Virnet X Inc
Legal Proceedings [Line Items]
Amount awarded to other party, pre interest							$ 343,000,000
Awarded to the other party, interest and legal fees					$ 93,000,000		96,000,000
Amount awarded from other party	$ 503,000,000				595,000,000	$ 502,000,000	$ 439,000,000
Proceeds from legal settlements			$ 454,000,000
Royalty rate awarded, per device					$ 1.20
Number of infringed patents				2
Number of infringed other patents				2
Customer
Legal Proceedings [Line Items]
Royalty rate, percentage											4.00%