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Long-Term Debt - Narrative (Details)			3 Months Ended		6 Months Ended	9 Months Ended
	May 31, 2018 USD ($)	Jan. 31, 2013 USD ($)	Sep. 28, 2018 USD ($)	Jun. 29, 2018 USD ($) $ / shares	Jun. 29, 2018 d $ / shares	Sep. 28, 2018 USD ($)	Sep. 29, 2017 USD ($)	Dec. 31, 2017 USD ($)	Jun. 08, 2015
Debt Instrument [Line Items]
Debt issuance costs	$ 1,100,000		$ 35,700,000			$ 35,700,000		$ 44,400,000
Debt extinguishment charge	2,600,000
Write off of debt issuance costs	1,500,000
Write-off of third-party issuance costs	1,100,000
Unamortized debt discount and issuance costs expensed						1,100,000	$ 2,400,000
Long-term debt			2,900,100,000			2,900,100,000
Debt, principal balance outstanding			$ 2,900,100,000			$ 2,900,100,000		$ 3,175,000,000
Notes Payable to Banks
Debt Instrument [Line Items]
Debt instrument, interest rate (as a percent)			0.00%			0.00%		3.09%
Debt instrument, term		7 years
Debt, principal balance outstanding			$ 0			$ 0		$ 122,700,000
1.00% Notes
Debt Instrument [Line Items]
Debt instrument, interest rate (as a percent)			1.00%			1.00%
1.00% Notes | Convertible Debt
Debt Instrument [Line Items]
Debt issuance costs			$ 6,500,000			$ 6,500,000		8,600,000
Conversion price per share (in dollars per share) | $ / shares				$ 24.05	$ 24.05
Debt instrument, interest rate (as a percent)			1.00%			1.00%			1.00%
Long-term debt			$ 636,500,000			$ 636,500,000
Debt, principal balance outstanding			690,000,000			$ 690,000,000		$ 690,000,000
Debt Conversion Period, 20 and 30 Days | 1.00% Notes | Convertible Debt
Debt Instrument [Line Items]
Convertible debt instrument, threshold trading days | d					20
Convertible debt instrument, threshold, consecutive trading days | d					30
Convertible debt instrument, threshold, percentage of stock price trigger					130.00%
SANYO Electric
Debt Instrument [Line Items]
Debt instrument, face amount		$ 377,500,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity	1,000,000,000.0
Line of Credit | Term Loan B Facility
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity	$ 2,400,000,000.0
Prepayment of debt			20,000,000	$ 50,000,000
Unamortized debt discount and issuance costs expensed			$ 500,000	$ 1,400,000
Line of Credit | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Line of Credit | London Interbank Offered Rate (LIBOR) | Term Loan B Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Line of Credit | Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Line of Credit | Adjusted LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Line of Credit | Adjusted LIBOR | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.25%
Line of Credit | Adjusted LIBOR | Term Loan B Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%

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