Acquisitions of Businesses (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended						6 Months Ended	12 Months Ended
	Jun. 30, 2011 E.A. Pedersen Company [Member] Electrical Americas [Member]	Jun. 30, 2011 IE Power, Inc. [Member] Electrical Americas [Member]	Dec. 31, 2010 E. Begerow GmbH Co. KG [Member] Hydraulics [Member]	May 31, 2011 ACTOM Low Voltage [Member] Electrical Rest of World [Member]	Dec. 31, 2010 C.I. ESI de Colombia S.A. [Member] Electrical Americas [Member]	Dec. 31, 2010 Internormen Technology Group [Member] Hydraulics [Member]	Jun. 30, 2011 Eaton-SAMC (Shanghai Aircraft) Conveyance System Manufacturing Co., Ltd [Member] Aerospace [Member]	Nov. 30, 2010 Tuthill Coupling Group [Member] Hydraulics [Member]	Dec. 31, 2011 Polimer Kaucuk Sanayi ve Pazarlama A.S. [Member] Hydraulics [Member]	Dec. 31, 2011 Jeil Hydraulics Co. Ltd. [Member] Hydraulics [Member]
Description of annual sales from acquired entity from previous periods
Revenue reported for last annual period of acquired entity	$ 37	$ 5	$ 84	$ 65	$ 8	$ 55	$ 0	$ 35	$ 335	$ 189