Derivative Financial Instruments (Tables)
 6 Months Ended
Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Fair Value of Derivative Instruments in Condensed Consolidated Statement of Financial Position
Fair values of derivative instruments in the Condensed Consolidated Statement of Financial Position as of March 31, 2017 and September 30, 2016 are as follows:
 
 
 
Asset Derivatives
(in millions)
Classification
 
March 31,
2017
 
September 30, 2016
Foreign currency forward exchange contracts
Other current assets
 
$
11

 
$
11

Interest rate swaps
Other assets
 
15

 
35

Total
 
 
$
26

 
$
46


 
 
 
Liability Derivatives
(in millions)
Classification
 
March 31,
2017
 
September 30, 2016
Foreign currency forward exchange contracts
Other current liabilities
 
$
10

 
$
13
Effect of Derivative Instruments on the Condensed Consolidated Statement of Operations
The effect of derivative instruments on the Condensed Consolidated Statement of Operations for the three and six months ended March 31, 2017 and 2016 is as follows:
 
 
 
Amount of Gain (Loss)
 
Amount of Gain (Loss)
 
 
 
Three Months Ended
 
Six Months Ended
 
 
 
March 31
 
March 31
(in millions)
Location of Gain (Loss)
 
2017
 
2016
 
2017
 
2016
Derivatives Designated as Hedging Instruments:
 
 
 
 
 
 
 
 
 
Fair Value Hedges
 
 
 
 
 
 
 
 
 
Interest rate swaps
Interest expense
 
$
2

 
$
2

 
$
4

 
$
5

Cash Flow Hedges
 
 
 
 
 
 
 
 
 
Foreign currency forward exchange contracts:
 
 
 
 
 
 
 
 
 
Amount of gain (loss) recognized in AOCL (effective portion, before deferred tax impact)
AOCL
 
4

 
—

 
—

 
(1
)
Amount of loss reclassified from AOCL into income
Cost of sales
 
(2
)
 
(3
)
 
(3
)
 
(5
)
Derivatives Not Designated as Hedging Instruments:
 
 
 
 
 
 
 
 
 
Foreign currency forward exchange contracts
Cost of sales
 
—

 
(2
)
 
(1
)
 
(5
)