Goodwill and Intangibles (Tables) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Mar. 31, 2016

Mar. 31, 2015

Mar. 31, 2016

Mar. 31, 2015

Finite-Lived Intangible Assets [Line Items]

Schedule of Indefinite-Lived Intangible Assets [Table Text Block]

	Amortizable Life
	Minimum	Maximum
Customer relationships	2	20
Technology Assets	4	18
Trade names	8	17

Amortization of intangibles

$ 23.4

$ 21.2

$ 47.0

$ 41.7

Summary of Definite Lived Intangible Assets

	March 31, 2016							September 30, 2015
	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Customer relationships	$	987.8	$	(276.0	)	$	711.8	$	985.2	$	(247.4	)	$	737.8
Technology assets	234.3		(85.4		)	148.9		238.6		(78.1		)	160.5
Trade names	165.4		(81.4		)	84.0		165.4		(73.7		)	91.7
	$	1,387.5	$	(442.8	)	$	944.7	$	1,389.2	$	(399.2	)	$	990.0

A summary of the changes in the carrying amounts of goodwill and intangible assets are as follows:

			Intangible Assets
	Goodwill		Indefinite Lived			Definite Lived			Total
Balance at September 30, 2015 (As Adjusted)	$	2,487.4	$	1,490.3		$	990.0		$	2,480.3
Adjustments	2.6		—			—			—
Less: Periodic amortization	—		—			(47.0		)	(47.0		)
Effect of translation	4.1		(2.6		)	1.7			(0.9		)
Balance at March 31, 2016	$	2,494.1	$	1,487.7		$	944.7		$	2,432.4

Summary of Amortization Expense of Definite Lived Intangible Assets

Amortization expense for definite lived intangible assets for the three months ended March 31, 2016 and 2015 was $23.4 and $21.2, respectively, and $47.0 and $41.7 for the six months ended March 31, 2016 and 2015, respectively. Excluding the impact of any future acquisitions or change in foreign currency, the Company estimates annual amortization expense of amortizable intangible assets for the next five fiscal years will be as follows:

Fiscal Year	Estimated Amortization Expense
2016	$	93.9
2017	93.0
2018	86.2
2019	85.1
2020	84.9