Business Combinations - Proposed merger with Avast (Details)	Jan. 28, 2022 USD ($)	Aug. 10, 2021 USD ($) $ / shares	Apr. 01, 2022 $ / shares	Jul. 13, 2021 $ / shares
Business Acquisition [Line Items]
Share price (in dollars per share) | $ / shares			$ 26.94	$ 27.20
Term Loan Interim Facility B
Business Acquisition [Line Items]
Maximum borrowing capacity		$ 3,600,000,000
Interim Revolving Facility A1
Business Acquisition [Line Items]
Maximum borrowing capacity		750,000,000
Term Loan Interim Facility A2
Business Acquisition [Line Items]
Maximum borrowing capacity		3,500,000,000
Interim Revolving Facility
Business Acquisition [Line Items]
Maximum borrowing capacity		1,500,000,000
Line of Credit
Business Acquisition [Line Items]
Line of credit facility increase	$ 500,000,000
Avast plc | Minimum
Business Acquisition [Line Items]
Merger, contingent consideration		8,100,000,000
Avast plc | Maximum
Business Acquisition [Line Items]
Merger, contingent consideration		8,600,000,000
Potential merger agreement termination fee		$ 200,000,000
Avast plc | Cash Option
Business Acquisition [Line Items]
Merger share price (in dollars per share) | $ / shares		$ 7.61
Share of our stock (in dollars per share)		0.0302
Avast plc | Equity Option
Business Acquisition [Line Items]
Merger share price (in dollars per share) | $ / shares		$ 2.37
Share of our stock (in dollars per share)		0.1937