Commitments and Contingencies - Additional Information (Details) - Pending Litigation $ in Millions, € in Billions	Aug. 11, 2020 USD ($)	Mar. 16, 2020 EUR (€)	Feb. 28, 2020 USD ($)	Apr. 11, 2018 USD ($)
VirnetX
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceedings, due to other party				$ 503
iOS Performance Management | Minimum
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceedings, due to other party			$ 310
iOS Performance Management | Maximum
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceedings, due to other party			$ 500
French Competition Authority
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceedings, due to other party | €		€ 1.1
Optis
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceedings, due to other party	$ 506