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Revenue from Contracts with Customers Revenue from Contracts with Customers (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2018
Contract with Customer, Asset, Net | $ 11.4 |  |  |  |  |  |  |  | $ 11.4 |  |  | $ 9.4
Contract with Customer, Refund Liability, Current | 5.8 |  |  |  | $ 18.4 |  |  |  | $ 5.8 | $ 18.4 |  |
Revenue, Performance Obligation, Description of Payment Terms |  |  |  |  |  |  |  |  | from 30 to 90 days |  |  |
Contract with Customer, Liability, Current | 13.4 |  |  |  | 12.1 |  |  |  | $ 13.4 | 12.1 |  |
Contract with Customer, Liability, Noncurrent | 17.3 |  |  |  | 21.9 |  |  |  | 17.3 | 21.9 |  |
Net sales | $ 2,572.8 | $ 2,478.5 | $ 2,694.0 | $ 2,784.3 | 2,586.4 | $ 2,416.2 | $ 2,389.7 | $ 2,407.0 | $ 10,529.6 | 9,799.3 | $ 9,071.0 |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 7 years |  |  |  |  |  |  |  | 7 years |  |  |
Capitalized contract costs, amortization period |  |  |  |  |  |  |  |  | 7 years |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 years |  |  |  |  |  |  |  | 3 years |  |  |
Capitalized contract costs, amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |
Prepaid Expenses and Other Current Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |
Contract with Customer, Asset, Net | $ 29.4 |  |  |  | 18.2 |  |  |  | $ 29.4 | 18.2 |  |
Other non-current assets |  |  |  |  |  |  |  |  |  |  |  |
Contract with Customer, Asset, Net | $ 187.4 |  |  |  | $ 180.4 |  |  |  | 187.4 | 180.4 |  |
Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,021.9 | 3,735.5 | 3,470.1 |
Other |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 475.9 | 425.9 | 393.1 |
Consolidated Entities [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 10,529.6 | 9,799.3 | 9,071.0 |
Consolidated Entities [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,021.9 | 3,735.5 | 3,470.1 |
Consolidated Entities [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 3,371.9 | 3,200.2 | 3,044.3 |
Consolidated Entities [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 2,982.7 | 2,730.5 | 2,460.7 |
Consolidated Entities [Member] | Other |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 153.1 | 133.1 | 95.9 |
Drivetrain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,139.4 | 3,790.3 | 3,523.7 |
Drivetrain [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 947.8 | 952.4 | 848.1 |
Drivetrain [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,798.6 | 1,691.2 | 1,745.0 |
Drivetrain [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,361.9 | 1,116.0 | 909.4 |
Drivetrain [Member] | Other |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 31.4 | 30.7 | 21.2 |
Engine [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 6,447.4 | 6,061.5 | 5,590.1 |
Engine [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 3,074.1 | 2,783.1 | 2,622.0 |
Engine [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,573.3 | 1,509.0 | 1,299.3 |
Engine [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,620.8 | 1,614.5 | 1,551.3 |
Engine [Member] | Other |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 121.7 | 102.4 | 74.7 |
Reportable Geographical Components [Member] | Drivetrain [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,139.7 | 3,790.3 | 3,523.7 |
Reportable Geographical Components [Member] | Engine [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 6,389.9 | $ 6,009.0 | $ 5,547.3 |

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