Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value

The following tables present the Company’s fair value hierarchy for those assets and liabilities measured at fair value as of March 31, 2018 and September 30, 2017 (in millions):

	Fair Value Measurements Using:
	Total as of March 31, 2018		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Other current assets
Foreign currency exchange derivatives	$	26	$	—	$	26	$	—
Commodity derivatives	3		—		3		—
Exchange traded funds (fixed income)1	29		29		—		—
Other noncurrent assets
Investments in marketable common stock	7		7		—		—
Deferred compensation plan assets	95		95		—		—
Exchange traded funds (fixed income)1	137		137		—		—
Exchange traded funds (equity)1	108		108		—		—
Equity swap	63		—		63		—
Total assets	$	468	$	376	$	92	$	—
Other current liabilities
Foreign currency exchange derivatives	$	37	$	—	$	37	$	—
Commodity derivatives	2		—		2		—
Total liabilities	$	39	$	—	$	39	$	—

	Fair Value Measurements Using:
	Total as of September 30, 2017		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Other current assets
Foreign currency exchange derivatives	$	27	$	—	$	27	$	—
Commodity derivatives	9		—		9		—
Exchange traded funds (fixed income)1	14		14		—		—
Other noncurrent assets
Investments in marketable common stock	10		10		—		—
Deferred compensation plan assets	92		92		—		—
Exchange traded funds (fixed income)1	155		155		—		—
Exchange traded funds (equity)1	100		100		—		—
Equity swap	55		—		55		—
Total assets	$	462	$	371	$	91	$	—
Other current liabilities
Foreign currency exchange derivatives	$	46	$	—	$	46	$	—
Commodity derivatives	1		—		1		—
Total liabilities	$	47	$	—	$	47	$	—