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Commitments
12 Months Ended
Aug. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Commitments
Commitments

As of August 31, 2017, we had commitments of approximately $1.10 billion for the acquisition of property, plant, and equipment. We lease certain facilities and equipment under operating leases, for which expense was $52 million, $46 million, and $48 million for 2017, 2016, and 2015, respectively. Minimum future operating lease commitments as of August 31, 2017 were as follows:
2018
 
$
29

2019
 
28

2020
 
23

2021
 
19

2022
 
17

2023 and thereafter
 
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$
154