Acquisitions	12 Months Ended
Dec. 31, 2018
Business Combinations [Abstract]
Acquisitions	Acquisitions There were no acquisitions during 2018. Net cash paid for acquisitions during 2017 and 2016 was $3 million and $453 million, respectively. Acquisitions, individually and in the aggregate, did not materially affect the Company's results of operations or financial position for any period presented. The net cash paid for acquisitions in 2016 primarily related to the acquisition of the Engineered Fasteners and Components ("EF&C") business from ZF TRW on July 1, 2016 for a purchase price of approximately $450 million. As a result of the EF&C transaction, which was reported in the Company's Automotive OEM segment, the Company recorded $187 million of goodwill and $134 million of amortizable intangible assets primarily related to customer relationships and technology. Approximately $104 million of the acquired goodwill balance is tax deductible. The fair values of the intangible assets were estimated based on discounted cash flow and market-based valuation models using Level 2 and Level 3 inputs and assumptions. The intangible assets are amortized on a straight-line basis over their estimated useful lives ranging from 4 to 17 years, with a weighted average amortization period of 16 years.

Acquisitions

There were no acquisitions during 2018. Net cash paid for acquisitions during 2017 and 2016 was $3 million and $453 million, respectively. Acquisitions, individually and in the aggregate, did not materially affect the Company's results of operations or financial position for any period presented.

The net cash paid for acquisitions in 2016 primarily related to the acquisition of the Engineered Fasteners and Components ("EF&C") business from ZF TRW on July 1, 2016 for a purchase price of approximately $450 million. As a result of the EF&C transaction, which was reported in the Company's Automotive OEM segment, the Company recorded $187 million of goodwill and $134 million of amortizable intangible assets primarily related to customer relationships and technology. Approximately $104 million of the acquired goodwill balance is tax deductible. The fair values of the intangible assets were estimated based on discounted cash flow and market-based valuation models using Level 2 and Level 3 inputs and assumptions. The intangible assets are amortized on a straight-line basis over their estimated useful lives ranging from 4 to 17 years, with a weighted average amortization period of 16 years.