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Segment Reporting - Revenue from External Customers and Tangible Long-lived Assets by Geographic Area (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Oct. 03, 2020 | Jul. 04, 2020 | Apr. 04, 2020 | Dec. 31, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers | $ 5,243.2 | $ 4,900.1 | $ 2,444.5 | $ 4,457.7 | $ 4,817.6 | $ 4,825.0 | $ 5,007.6 | $ 5,160.1 | $ 17,045.5 | $ 19,810.3 | $ 21,148.5
Tangible long-lived assets | 3,276.5 |  |  |  | 3,231.2 |  |  |  | 3,276.5 | 3,231.2 |
United States |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 3,599.1 | 3,658.5 | 3,717.7
Tangible long-lived assets | 534.0 |  |  |  | 549.8 |  |  |  | 534.0 | 549.8 |
Mexico |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 2,528.4 | 3,058.6 | 3,236.9
Tangible long-lived assets | 689.9 |  |  |  | 700.1 |  |  |  | 689.9 | 700.1 |
China |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 2,592.7 | 2,579.7 | 2,781.5
Tangible long-lived assets | 458.2 |  |  |  | 450.2 |  |  |  | 458.2 | 450.2 |
Germany |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 1,288.3 | 1,698.7 | 2,187.2
Tangible long-lived assets | 205.8 |  |  |  | 204.9 |  |  |  | 205.8 | 204.9 |
Other countries |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 7,037.0 | 8,814.8 | $ 9,225.2
Tangible long-lived assets | $ 1,388.6 |  |  |  | $ 1,326.2 |  |  |  | $ 1,388.6 | $ 1,326.2 |

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