Debt and Secured Revolving Line of Credit (Convertible Debt) (Details) - 2.125% Convertible Senior Notes due 2026 - USD ($) |
Mar. 31, 2018 |
Dec. 30, 2017 |
Dec. 31, 2016 |
Sep. 28, 2016 |
Sep. 14, 2016 |
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| Debt Instrument [Line Items] | |||||
| Principal | $ 805,000,000 | $ 805,000,000 | $ 105,000,000 | $ 700,000,000 | |
| Unamortized debt discount | (280,000,000) | (286,000,000) | |||
| Unamortized debt issuance costs | (12,000,000) | (12,000,000) | |||
| Net carrying amount | 513,000,000 | 507,000,000 | |||
| Carrying amount of the equity component, net | 305,000,000 | $ 305,000,000 | |||
| Equity issuance costs | $ 9,000,000 | $ 9,000,000 |
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. No definition available.
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- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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