Debt and Revolving Facility - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 25, 2021	Dec. 26, 2020	Sep. 30, 2016
Debt Instrument [Line Items]
Total debt (principal amount)	$ 313	$ 338
Unamortized debt discount and issuance costs	0	(8)
Total debt (net)	313	330
Less: short-term debt	312	0
Long-term debt, net	$ 1	330
2.125% Convertible Senior Notes due 2026 \| Convertible Debt
Debt Instrument [Line Items]
Stated interest rate	2.125%		2.125%
Total debt (principal amount)	$ 1	26
7.50% Senior Notes due 2022 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate	7.50%
Total debt (principal amount)	$ 312	$ 312

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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