Derivative Financial Instruments (Tables)

3 Months Ended

Dec. 31, 2017

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of Amounts Recorded in Consolidated Balance Sheet

The following is a summary of amounts recorded in the Consolidated Balance Sheet pertaining to the Company’s use of foreign currency derivatives at December 31, 2017 and September 30, 2017:

	December 31,		September 30,
	2017 (a)		2017
	(in millions)
Other current assets	$	—	$	—
Other current liabilities		1		—

(a) Includes $1 million and $2 million of foreign exchange derivative contracts in asset and liability positions, respectively.