Recent Transactions	12 Months Ended
Dec. 31, 2013
Business Combinations [Abstract]
Recent transactions	RECENT TRANSACTIONS Gustav Wahler GmbH u. Co KG In December 2013, the Company announced that it had signed an agreement to acquire Gustav Wahler GmbH u. Co. KG and its general partner ("Wahler"). The deal is expected to close in the first quarter of 2014 subject to standard regulatory approvals. Wahler is a producer of exhaust gas recirculation ("EGR") valves, EGR tubes and thermostats and has operations in Germany, Brazil, the U.S., China and Slovakia. Wahler's sales for 2013 are expected to be approximately $350 million and this acquisition strengthens the Company's strategic position as a producer of complete EGR systems and creates additional market opportunities in both passenger and commercial vehicle applications. BorgWarner BERU Systems Korea Co., Ltd. During the third and fourth quarters of 2012, the Company completed the purchase of the remaining 49% of BorgWarner BERU Systems Korea Co., Ltd. for $15.0 million in cash, which has been classified as a financing activity within the Consolidated Statement of Cash Flows. In accordance with ASC Topic 810,"Consolidation," the Company reduced its noncontrolling interest balance by $7.0 million and reduced capital in excess of par value by $8.0 million. As a result of these transactions, the Company now owns 100% of BorgWarner BERU Systems Korea Co., Ltd. Spark plug business During the second and third quarters of 2012, the Company incurred $39.7 million in expense associated with the loss on sale of the spark plug business to Federal-Mogul Corporation primarily related to the write-down of prior purchase price accounting adjustments. These purchase price accounting adjustments were originally reported in the Engine segment and related to the BERU acquisition. As a result of the sale, the Company received $55.2 million in cash, which is classified as an investing activity within the Consolidated Statement of Cash Flows. The sale will allow the Company to continue to focus on expanding BERU Systems' core products of glow plugs, diesel cold start systems and other gasoline ignition technologies. Tire pressure monitoring business During the fourth quarter of 2011, the Company incurred $21.5 million in expense associated with the loss on sale of the tire pressure monitoring business, including the write-down of prior purchase price accounting adjustments related to the BERU acquisition, costs related to the divestiture, and a write-down of a portion of the ignitor and electronic business. The Company received $22.9 million in cash, classified as an investing activity within the Consolidated Statement of Cash Flows, from the sale of its tire pressure monitoring business to Huf Electronics GmbH. The sale will allow the Company to continue to focus on expanding BERU Systems' core products of glow plugs, diesel cold start systems and other gasoline ignition technologies. BorgWarner Vikas Emissions Systems India Private Limited On August 2, 2011, the Company purchased the noncontrolling interest's 40% share of BorgWarner Vikas Emissions Systems India Private Limited for $29.4 million in cash, which has been classified as a financing activity within the Consolidated Statement of Cash Flows. In accordance with ASC Topic 810, the Company reduced its noncontrolling interest balance by $2.8 million and reduced capital in excess of par value by $26.6 million. As a result of this transaction, the Company owns 100% of BorgWarner Vikas Emissions Systems India Private Limited. Traction Systems division of Haldex Group On January 31, 2011, the Company acquired 100% of the stock of Haldex Traction Holding AB ("Haldex Traction Systems"). Haldex Traction Systems has operations in Sweden, Hungary and Mexico. The consideration for the acquisition, net of cash acquired, was $214.9 million (1.38 billion Swedish Krona). The acquisition has accelerated the Company's growth in the global all-wheel drive ("AWD") market as it continues to shift toward front-wheel drive ("FWD") based vehicles. The acquisition will add industry leading FWD/AWD technologies, with a strong European customer base, to the Company's existing portfolio of front- and rear-wheel drive based products. This enables the Company to provide global customers a broader range of AWD solutions to meet their vehicle needs. The operating results are reported within the Company's Drivetrain reporting segment as of the date of acquisition. The Company paid $203.7 million, which is recorded as an investing activity in the Consolidated Statement of Cash Flows. Additionally, the Company assumed retirement-related liabilities of $5.3 million and assumed debt of $5.9 million, which are considered non-cash transactions in the Consolidated Statement of Cash Flows.

RECENT TRANSACTIONS

Gustav Wahler GmbH u. Co KG

In December 2013, the Company announced that it had signed an agreement to acquire Gustav Wahler GmbH u. Co. KG and its general partner ("Wahler"). The deal is expected to close in the first quarter of 2014 subject to standard regulatory approvals. Wahler is a producer of exhaust gas recirculation ("EGR") valves, EGR tubes and thermostats and has operations in Germany, Brazil, the U.S., China and Slovakia. Wahler's sales for 2013 are expected to be approximately $350 million and this acquisition strengthens the Company's strategic position as a producer of complete EGR systems and creates additional market opportunities in both passenger and commercial vehicle applications.

BorgWarner BERU Systems Korea Co., Ltd.

During the third and fourth quarters of 2012, the Company completed the purchase of the remaining 49% of BorgWarner BERU Systems Korea Co., Ltd. for $15.0 million in cash, which has been classified as a financing activity within the Consolidated Statement of Cash Flows. In accordance with ASC Topic 810,"Consolidation," the Company reduced its noncontrolling interest balance by $7.0 million and reduced capital in excess of par value by $8.0 million. As a result of these transactions, the Company now owns 100% of BorgWarner BERU Systems Korea Co., Ltd.

Spark plug business

During the second and third quarters of 2012, the Company incurred $39.7 million in expense associated with the loss on sale of the spark plug business to Federal-Mogul Corporation primarily related to the write-down of prior purchase price accounting adjustments. These purchase price accounting adjustments were originally reported in the Engine segment and related to the BERU acquisition. As a result of the sale, the Company received $55.2 million in cash, which is classified as an investing activity within the Consolidated Statement of Cash Flows. The sale will allow the Company to continue to focus on expanding BERU Systems' core products of glow plugs, diesel cold start systems and other gasoline ignition technologies.

Tire pressure monitoring business

During the fourth quarter of 2011, the Company incurred $21.5 million in expense associated with the loss on sale of the tire pressure monitoring business, including the write-down of prior purchase price accounting adjustments related to the BERU acquisition, costs related to the divestiture, and a write-down of a portion of the ignitor and electronic business. The Company received $22.9 million in cash, classified as an investing activity within the Consolidated Statement of Cash Flows, from the sale of its tire pressure monitoring business to Huf Electronics GmbH. The sale will allow the Company to continue to focus on expanding BERU Systems' core products of glow plugs, diesel cold start systems and other gasoline ignition technologies.

BorgWarner Vikas Emissions Systems India Private Limited

On August 2, 2011, the Company purchased the noncontrolling interest's 40% share of BorgWarner Vikas Emissions Systems India Private Limited for $29.4 million in cash, which has been classified as a financing activity within the Consolidated Statement of Cash Flows. In accordance with ASC Topic 810, the Company reduced its noncontrolling interest balance by $2.8 million and reduced capital in excess of par value by $26.6 million. As a result of this transaction, the Company owns 100% of BorgWarner Vikas Emissions Systems India Private Limited.

Traction Systems division of Haldex Group

On January 31, 2011, the Company acquired 100% of the stock of Haldex Traction Holding AB ("Haldex Traction Systems"). Haldex Traction Systems has operations in Sweden, Hungary and Mexico. The consideration for the acquisition, net of cash acquired, was $214.9 million (1.38 billion Swedish Krona).

The acquisition has accelerated the Company's growth in the global all-wheel drive ("AWD") market as it continues to shift toward front-wheel drive ("FWD") based vehicles. The acquisition will add industry leading FWD/AWD technologies, with a strong European customer base, to the Company's existing portfolio of front- and rear-wheel drive based products. This enables the Company to provide global customers a broader range of AWD solutions to meet their vehicle needs.

The operating results are reported within the Company's Drivetrain reporting segment as of the date of acquisition. The Company paid $203.7 million, which is recorded as an investing activity in the Consolidated Statement of Cash Flows. Additionally, the Company assumed retirement-related liabilities of $5.3 million and assumed debt of $5.9 million, which are considered non-cash transactions in the Consolidated Statement of Cash Flows.