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Segment Reporting - Summary of Segment Financial Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 01, 2017 | Jul. 02, 2016 | Jul. 01, 2017 | Jul. 02, 2016 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues from external customers | $ 5,123.2 |  | $ 4,724.8 | $ 10,121.7 |  | $ 9,387.7 |
Segment earnings | 409.1 |  | 372.8 | 825.8 |  | 746.3 |
Depreciation and amortization | 104.6 |  | 94.5 | 201.5 |  | 184.7 |
Capital expenditures | 153.2 |  | 93.6 | 274.0 |  | 181.7 |
Total assets | 11,237.2 | [1] | 10,140.5 | 11,237.2 | [1] | 10,140.5 | $ 9,900.6
Operating segments | Seating |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues from external customers | 4,025.1 |  | 3,640.4 | 7,893.1 |  | 7,242.4 |
Segment earnings | 322.7 |  | 287.7 | 643.0 |  | 579.3 |
Depreciation and amortization | 71.5 |  | 64.6 | 136.5 |  | 125.9 |
Capital expenditures | 94.7 |  | 61.9 | 177.4 |  | 124.3 |
Total assets | 7,397.7 |  | 6,224.2 | 7,397.7 |  | 6,224.2 |
Operating segments | E-Systems |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues from external customers | 1,098.1 |  | 1,084.4 | 2,228.6 |  | 2,145.3 |
Segment earnings | 156.3 |  | 151.4 | 321.2 |  | 301.2 |
Depreciation and amortization | 29.4 |  | 26.9 | 57.7 |  | 53.0 |
Capital expenditures | 54.0 |  | 24.4 | 83.5 |  | 44.6 |
Total assets | 1,880.8 |  | 1,691.4 | 1,880.8 |  | 1,691.4 |
Other |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues from external customers | 0.0 |  | 0.0 | 0.0 |  | 0.0 |
Segment earnings | (69.9) |  | (66.3) | (138.4) |  | (134.2) |
Depreciation and amortization | 3.7 |  | 3.0 | 7.3 |  | 5.8 |
Capital expenditures | 4.5 |  | 7.3 | 13.1 |  | 12.8 |
Total assets | $ 1,958.7 |  | $ 2,224.9 | $ 1,958.7 |  | $ 2,224.9 |
[1] | Unaudited.

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