Commitments and Contingencies - Additional Information (Details) $ in Millions, € in Billions	Mar. 16, 2020 EUR (€)	Feb. 28, 2020 USD ($)	Apr. 11, 2018 USD ($)	Jun. 27, 2020 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Unconditional purchase obligations				$ 9,200
VirnetX [Member] | Pending litigation
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceeding, due to other party			$ 503
iOS Performance Management | Pending litigation | Minimum
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceeding, due to other party		$ 310
iOS Performance Management | Pending litigation | Maximum
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceeding, due to other party		$ 500
French Competition Authority | Pending litigation
Commitments and Contingencies Disclosure [Line Items]
Award from legal proceeding, due to other party | €	€ 1.1