Commitments and Contingencies (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended	69 Months Ended
	Oct. 21, 2019	Jan. 31, 2014	Jan. 01, 2021	Jan. 03, 2020	Jan. 01, 2021	Jan. 03, 2020	Apr. 03, 2020	Sep. 30, 2012
Loss Contingencies [Line Items]
Purchase Obligation			$ 343		$ 343
Transition tax on untaxed foreign earnings			585		585
Net revenues			639	$ 618	1,879	$ 1,876
GSA Schedule Contract
Loss Contingencies [Line Items]
Net revenues								$ 222
Estimated damage	$ 1,090	$ 145
GSA Schedule Contract | Minimum
Loss Contingencies [Line Items]
Estimated loss			$ 50		$ 50
Avila v.LifeLock et al
Loss Contingencies [Line Items]
Charges related to litigation settlement							$ 20