Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash	$ 481.9	$ 359.6
Receivables, net	1,327.7	1,183.0
Inventories, net	472.7	454.3
Deferred income taxes	37.5	58.5
Prepayments and other current assets	100.7	82.4
Total current assets	2,420.5	2,137.8
Property, plant and equipment, net	1,672.7	1,664.3
Investments and advances	363.7	345.3
Goodwill	1,161.8	1,186.2
Other non-current assets	602.0	625.0
Total assets	6,220.7	5,958.6
LIABILITIES AND EQUITY
Notes payable and other short-term debt	186.8	196.3
Current portion of long-term debt	10.2	381.5
Accounts payable and accrued expenses	1,279.3	1,297.8
Income taxes payable	37.0	29.8
Total current liabilities	1,513.3	1,905.4
Long-term debt	956.2	751.3
Other non-current liabilities:
Retirement-related liabilities	451.1	457.0
Other	365.6	391.9
Total other non-current liabilities	816.7	848.9
Common stock	1.2	1.2
Capital in excess of par value	1,477.8	1,134.3
Retained earnings	2,388.9	2,110.3
Accumulated other comprehensive (loss)	(182.6)	(150.8)
Common stock held in treasury	(811.6)	(707.1)
Total BorgWarner Inc. stockholders' equity	2,873.7	2,387.9
Noncontrolling interest	60.8	65.1
Total equity	2,934.5	2,453.0
Total liabilities and equity	$ 6,220.7	$ 5,958.6