Recent Transactions (Details) $ / shares in Units, ₨ in Millions, $ in Millions			3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 29, 2015 USD ($)	Jan. 29, 2015 INR (₨)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Nov. 10, 2015 USD ($) number_of_countries	Jul. 13, 2015 $ / shares
Business Acquisition [Line Items]
Sales Revenue, Goods, Net			$ 2,329.2	$ 2,031.9	$ 4,597.8	$ 4,016.1
Aggregated estimated fair value of assets acquired and liabilities assumed
Goodwill			1,767.0		1,767.0		$ 1,757.7
Cash paid, net of cash acquired					0.0	12.6
Gain on previously held equity interest					0.0	10.8
Goodwill, purchase accounting adjustments					6.3
Remy International Inc.
Business Acquisition [Line Items]
Business acquisition, share price | $ / shares									$ 29.50
Business Combination, Consideration Transferred, Other							361.0
Number of countries in which entity operates | number_of_countries								10
Equity interest acquired								100.00%
Aggregated estimated fair value of assets acquired and liabilities assumed
Receivables, net								$ 222.8
Inventories, net								195.3
Property, plant and equipment, net								196.6
Goodwill								591.0
Other intangible assets, net of tax								412.6
Other assets and liabilities								(220.9)
Accounts payable and accrued expenses								(168.4)
Total consideration, net of cash acquired								1,229.0
Less: Assumed retirement-related liabilities								31.1
Less: Assumed debt								10.9
Cash paid, net of cash acquired							$ 1,187.0
Remy International Inc. | In Process Research and Development [Member]
Aggregated estimated fair value of assets acquired and liabilities assumed
Other intangible assets, net of tax								3.8
Remy International Inc. | Customer Relationships
Aggregated estimated fair value of assets acquired and liabilities assumed
Other intangible assets, net of tax								303.3
Remy International Inc. | Developed Technology Rights [Member]
Aggregated estimated fair value of assets acquired and liabilities assumed
Other intangible assets, net of tax								46.4
Remy International Inc. | Trade Names
Aggregated estimated fair value of assets acquired and liabilities assumed
Other intangible assets, net of tax								59.0
Remy International Inc. | Other Intangible Assets [Member]
Aggregated estimated fair value of assets acquired and liabilities assumed
Other intangible assets, net of tax								$ 0.1
BERU Diesel Start Systems Pvt. Ltd.
Business Acquisition [Line Items]
Equity interest acquired	51.00%
Equity interest acquired, step acquisition	100.00%
Aggregated estimated fair value of assets acquired and liabilities assumed
Cash paid, net of cash acquired	$ 12.6	₨ 783.1
Gain on previously held equity interest			$ 0.0	$ 0.0	$ 0.0	$ 10.8
Assets acquired	16.0
Definite-lived intangible assets	11.2
Assumed liabilities	4.6
Nondeductible amount of goodwill	$ 13.9
Minimum | Remy International Inc.
Aggregated estimated fair value of assets acquired and liabilities assumed
Weighted average useful life							5 years
Maximum | Remy International Inc.
Aggregated estimated fair value of assets acquired and liabilities assumed
Weighted average useful life							15 years