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Reporting Segments and Related Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Customer sales |  |  |  |  |  |  |  |  |  | $ 9,071.0 | $ 8,023.2 | $ 8,305.1
Net sales |  | $ 2,259.0 | $ 2,214.2 | $ 2,329.2 | $ 2,268.6 | $ 2,123.1 | $ 1,884.0 | $ 2,031.9 | $ 1,984.2 | 9,071.0 | 8,023.2 | 8,305.1
Year-end assets |  | 8,834.7 |  |  |  | 8,825.7 |  |  |  | 8,834.7 | 8,825.7 | 7,225.2
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 391.4 | 320.2 | 330.4
Long-lived asset expenditures | [1] |  |  |  |  |  |  |  |  | 500.6 | 577.3 | 563.0
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Customer sales |  |  |  |  |  |  |  |  |  | 9,071.0 | 8,023.2 | 8,305.1
Net sales |  |  |  |  |  |  |  |  |  | 9,071.0 | 8,023.2 | 8,305.1
Year-end assets |  | 7,347.0 |  |  |  | 7,702.9 |  |  |  | 7,347.0 | 7,702.9 | 5,719.7
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 366.4 | 297.2 | 308.1
Long-lived asset expenditures | [1] |  |  |  |  |  |  |  |  | 481.5 | 554.2 | 539.0
Engine [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Customer sales |  |  |  |  |  |  |  |  |  | 5,547.3 | 5,466.5 | 5,673.7
Inter-segment sales |  |  |  |  |  |  |  |  |  | 42.8 | 33.5 | 32.2
Net sales |  |  |  |  |  |  |  |  |  | 5,590.1 | 5,500.0 | 5,705.9
Year-end assets |  | 4,134.6 |  |  |  | 4,017.8 |  |  |  | 4,134.6 | 4,017.8 | 3,936.2
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 211.9 | 200.2 | 215.3
Long-lived asset expenditures | [1] |  |  |  |  |  |  |  |  | 298.7 | 332.4 | 349.8
Drivetrain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Customer sales |  |  |  |  |  |  |  |  |  | 3,523.7 | 2,556.7 | 2,631.4
Inter-segment sales |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 3,523.7 | 2,556.7 | 2,631.4
Year-end assets |  | 3,212.4 |  |  |  | 3,685.1 |  |  |  | 3,212.4 | 3,685.1 | 1,783.5
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 154.5 | 97.0 | 92.8
Long-lived asset expenditures | [1] |  |  |  |  |  |  |  |  | 182.8 | 221.8 | 189.2
Inter-segment eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Inter-segment sales |  |  |  |  |  |  |  |  |  | (42.8) | (33.5) | (32.2)
Net sales |  |  |  |  |  |  |  |  |  | (42.8) | (33.5) | (32.2)
Corporate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Year-end assets | [2] | $ 1,487.7 |  |  |  | $ 1,122.8 |  |  |  | 1,487.7 | 1,122.8 | 1,505.5
Depreciation and amortization | [2] |  |  |  |  |  |  |  |  | 25.0 | 23.0 | 22.3
Long-lived asset expenditures | [1],[2] |  |  |  |  |  |  |  |  | $ 19.1 | $ 23.1 | $ 24.0
[1] | Long-lived asset expenditures include capital expenditures and tooling outlays.
[2] | Corporate assets include investments and other long-term receivables and deferred income taxes.

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