Commitments and Contingencies (Tables)

12 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

Changes to the carrying amount of our asset retirement obligations are as follows:

Balance at 30 September 2015	$	109.4
Additional accruals	10.4
Liabilities settled	(4.4		)
Accretion expense	5.4
Currency translation adjustment	(.9		)
Balance at 30 September 2016	$	119.9
Additional accruals	22.7
Liabilities settled	(4.1		)
Accretion expense	5.8
Currency translation adjustment	.4
Balance at 30 September 2017	$	144.7

Schedule of Unconditional Purchase Obligations Disclosure

We are obligated to make future payments under unconditional purchase obligations as summarized below:

2018	$	822
2019	234
2020	275
2021	309
2022	285
Thereafter	4,608
Total	$	6,533