Noncontrolling interests (Tables)

9 Months Ended

Sep. 30, 2012

Noncontrolling interests [Abstract]

Total equity, equity attributable To MTI, and equity attributable to noncontrolling interests

     The following is a reconciliation of beginning and ending total equity, equity attributable to MTI, and equity attributable to non-controlling interests:

		Equity Attributable to MTI
(millions of dollars)		Common Stock		Additional Paid-in Capital		RetainedEarnings			AccumulatedOtherComprehensiveIncome (Loss)			Treasury Stock			Non-controlling Interests			Total
Balance as of December 31, 2011		$	2.9		335.1		963.1			(45.3	)		(514.2	)		26.4			768.0
Net income			--		--		56.4			--			--			1.7			58.1
Dividends declared			--		--		(2.7	)		--			--			--			(2.7	)
Dividends to non-controlling interest			--		--		--			--			--			(3.4	)		(3.4	)
Capital contributions by non-controlling interest			--		--		--			--			--			0.8			0.8
Currency translation adjustment			--		--		--			1.6			--			(0.1	)		1.5
Unamortized pension gains and
	prior service costs		--		--		--			5.5			--			--			5.5
Cash flow hedge:
Net derivative gains (losses)
	arising during the year		--		--		--			0.4			--			--			0.4
Reclassification adjustment			--		--		--			--			--			--			--
Employee benefit transactions			--		6.2		--			--			--			--			6.2
Income tax benefit arising from employee
	stock option plans		--		0.3		--			--			--			--			0.3
Stock based compensation			--		2.3		--			--			--			--			2.3
Purchase of common stock			--		--		--			--			(8.7	)		--			(8.7	)
Balance as of September 30, 2012		$	2.9		343.9		1,016.8			(37.8	)		(522.9	)		25.4			828.3