Spinoff Text (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Text [Abstract]
Common Shares of TimkenSteel Received in Spinoff	1
Common Shares of The Timken Company Received During Spinoff	2
Transaction Costs from Spinoff		$ 57	$ 13
Capital Expenditure, Discontinued Operations		$ 15