Debt, Secured Revolving Facility and Secured Revolving Line of Credit (Convertible Debt) (Details) - 2.125% Convertible Senior Notes due 2026 - USD ($)	Sep. 28, 2019	Dec. 29, 2018	Sep. 30, 2016
Debt Instrument [Line Items]
Principal	$ 679,000,000	$ 805,000,000	$ 805,000,000
Unamortized debt discount	(205,000,000)	(262,000,000)
Unamortized debt issuance costs	(8,000,000)	(11,000,000)
Net carrying amount	466,000,000	532,000,000
Carrying amount of the equity component, net	258,000,000	305,000,000
Equity issuance costs	$ 8,000,000	$ 9,000,000

Issuance costs attributable to the equity component of convertible debt adjusted to additional paid in capital.

No definition available.

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- Definition

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

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Face (par) amount of debt instrument at time of issuance.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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