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Financial Instruments - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 03, 2020 | Jun. 28, 2019 | Jul. 03, 2020 | Jun. 28, 2019 | Apr. 17, 2020 | Dec. 31, 2019
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Foreign currency transaction gain (loss) realized | $ (3,200,000) | $ (1,000,000.0) | $ (3,400,000) | $ (4,100,000) |  |
Convertible Debt | 1.00% Notes |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Debt instrument, interest rate (as a percent) | 1.00% |  | 1.00% |  |  |
Convertible Debt | 1.625% Notes |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Debt instrument, interest rate (as a percent) | 1.625% |  | 1.625% |  |  |
Foreign currency exchange contracts |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Notional Amount | $ 172,500,000 |  | $ 172,500,000 |  |  | $ 183,300,000
Foreign currency exchange contracts | Minimum |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative, term of contract (in months) |  |  | 1 month |  |  |
Foreign currency exchange contracts | Maximum |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative, term of contract (in months) |  |  | 3 months |  |  |
Interest Rate Swap 1 |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Notional Amount |  |  |  |  | $ 1,250,000,000 |
Interest Rate Swap 2 |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Notional Amount |  |  |  |  | 750,000,000.0 |
Interest Rate Swap 3 |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Notional Amount |  |  |  |  | $ 750,000,000.0 |
Interest Rate Swap |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Notional Amount | $ 2,250,000,000 | $ 1,000,000,000.0 | $ 2,250,000,000 | $ 1,000,000,000.0 |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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