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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, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers	$ 5,363.8	$ 4,981.5	$ 5,123.2	$ 4,998.5	$ 4,643.5	$ 4,526.4	$ 4,724.8	$ 4,662.9	$ 20,467.0	$ 18,557.6	$ 18,211.4
Tangible long-lived assets	2,459.4				2,019.3				2,459.4	2,019.3
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									3,955.1	4,186.0	4,252.3
Tangible long-lived assets	385.4				361.2				385.4	361.2
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									3,170.9	2,684.4	2,777.3
Tangible long-lived assets	549.0				466.5				549.0	466.5
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									2,519.3	2,277.6	2,141.9
Tangible long-lived assets	307.3				253.5				307.3	253.5
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									2,139.4	2,076.0	1,987.3
Tangible long-lived assets	182.4				147.5				182.4	147.5
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from external customers									8,682.3	7,333.6	$ 7,052.6
Tangible long-lived assets	$ 1,035.3				$ 790.6				$ 1,035.3	$ 790.6

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
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