The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Debt - Summary of Convertible Debt Obligations (Details) - 2023 Convertible Notes - Convertible Senior Notes - USD ($)	Oct. 02, 2022	Jan. 02, 2022	Aug. 30, 2018	Aug. 21, 2018
Debt Instrument [Line Items]
Stated rate (as a percent)				0.00%
Principal amount outstanding	$ 750,000,000	$ 750,000,000	$ 750,000,000
Unamortized debt discount and issuance costs	(3,000,000)	(48,000,000)
Net carrying amount of liability component	747,000,000	702,000,000
Less: current portion	(747,000,000)	0
Convertible senior notes, non-current	0	702,000,000
Carrying value of equity component, net of debt issuance costs		126,000,000
Level 2
Debt Instrument [Line Items]
Fair value of convertible senior notes outstanding (Level 2)	$ 721,000,000	$ 854,000,000