Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash	$ 396.9	$ 359.6
Receivables, net	1,369.4	1,183.0
Inventories, net	480.8	454.3
Deferred income taxes	69.6	58.5
Prepayments and other current assets	93.3	82.4
Total current assets	2,410.0	2,137.8
Property, plant and equipment, net	1,696.4	1,664.3
Investments and advances	345.6	345.3
Goodwill	1,200.5	1,186.2
Other non-current assets	628.8	625.0
Total assets	6,281.3	5,958.6
LIABILITIES AND EQUITY
Notes payable and other short-term debt	184.2	196.3
Current portion of long-term debt	377.1	381.5
Accounts payable and accrued expenses	1,291.3	1,297.8
Income taxes payable	28.6	29.8
Total current liabilities	1,881.2	1,905.4
Long-term debt	848.7	751.3
Other non-current liabilities:
Retirement-related liabilities	457.5	457.0
Other	373.1	391.9
Total other non-current liabilities	830.6	848.9
Common stock	1.2	1.2
Capital in excess of par value	1,205.0	1,134.3
Retained earnings	2,268.3	2,110.3
Accumulated other comprehensive (loss)	(94.8)	(150.8)
Common stock held in treasury	(721.7)	(707.1)
Total BorgWarner Inc. stockholders' equity	2,658.0	2,387.9
Noncontrolling interest	62.8	65.1
Total equity	2,720.8	2,453.0
Total liabilities and equity	$ 6,281.3	$ 5,958.6