Gain Contingency, Patents Found Infringed, Number, Other

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- Definition

Legal Proceedings [Line Items]

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

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- Definition

Litigation Settlement, Amount, Percent Receivable

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- Definition

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

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- Definition

Litigation Settlement, Interest And Additional Costs

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- Definition

Surety Bonds Outstanding, Notional Amount

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- Definition

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

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No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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- Definition

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

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Commitments and Contingencies (Narrative) (Details)					1 Months Ended
Commitments and Contingencies (Narrative) (Details)	Oct. 30, 2020 USD ($)	Nov. 22, 2019 patent	Aug. 30, 2018 USD ($)	Apr. 10, 2018 USD ($)	Jan. 31, 2021 USD ($)	Oct. 01, 2021 USD ($)
Standby Letters of Credit
Legal Proceedings [Line Items]
Amount outstanding						$ 68,000,000
Performance Guarantee
Legal Proceedings [Line Items]
Surety bonds notional amount						$ 132,000,000
Leidos
Legal Proceedings [Line Items]
Litigation settlement, percentage of total (percentage)					25.00%
Virnet X Inc
Legal Proceedings [Line Items]
Amount awarded from other party	$ 503,000,000		$ 595,000,000	$ 502,000,000
Royalty rate awarded (per device)	$ 0.84		1.20
Awarded to the other party, interest and legal fees			$ 93,000,000
Number of infringed patents \| patent		2
Number of infringed other patents \| patent		2
Additional costs and interest					$ 75,000,000