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Segment Reporting - Revenue from External Customers and Tangible Long-lived Assets by Geographic Area (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers	$ 4,942.4	$ 4,891.6	$ 5,580.8	$ 5,733.7	$ 5,363.8	$ 4,981.5	$ 5,123.2	$ 4,998.5	$ 21,148.5	$ 20,467.0	$ 18,557.6
Tangible long-lived assets	2,598.1				2,459.4				2,598.1	2,459.4
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									3,717.7	3,955.1	4,186.0
Tangible long-lived assets	422.9				385.4				422.9	385.4
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									3,236.9	3,170.9	2,684.4
Tangible long-lived assets	617.1				549.0				617.1	549.0
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									2,781.5	2,519.3	2,277.6
Tangible long-lived assets	344.4				307.3				344.4	307.3
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									2,187.2	2,139.4	2,076.0
Tangible long-lived assets	183.3				182.4				183.3	182.4
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									9,225.2	8,682.3	$ 7,333.6
Tangible long-lived assets	$ 1,030.4				$ 1,035.3				$ 1,030.4	$ 1,035.3

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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