Fair Value Measurements (Tables)

3 Months Ended

Dec. 30, 2017

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis

The following tables set forth by level within the fair value hierarchy our financial assets and liabilities accounted for at fair value on a recurring basis according to the valuation techniques we used to determine their fair values (in millions):

December 30, 2017	Level 1		Level 2		Level 3		Netting (a)			Total
Assets:
Derivative financial instruments:
Designated as hedges	$	—	$	6	$	—	$	2		$	8
Undesignated	—		16		—		3			19
Available-for-sale securities:
Current	—		1		1		—			2
Non-current	—		46		50		—			96
Deferred compensation assets	13		292		—		—			305
Total assets	$	13	$	361	$	51	$	5		$	430
Liabilities:
Derivative financial instruments:
Designated as hedges	$	—	$	12	$	—	$	(12	)	$	—
Undesignated	—		18		—		(15		)	3
Total liabilities	$	—	$	30	$	—	$	(27	)	$	3

September 30, 2017	Level 1		Level 2		Level 3		Netting (a)			Total
Assets:
Derivative financial instruments:
Designated as hedges	$	—	$	10	$	—	$	(1	)	$	9
Undesignated	—		24		—		(3		)	21
Available-for-sale securities:
Current	—		2		1		—			3
Non-current	—		45		50		—			95
Deferred compensation assets	23		272		—		—			295
Total assets	$	23	$	353	$	51	$	(4	)	$	423
Liabilities:
Derivative financial instruments:
Designated as hedges	$	—	$	9	$	—	$	(9	)	$	—
Undesignated	—		21		—		(17		)	4
Total liabilities	$	—	$	30	$	—	$	(26	)	$	4

(a) Our derivative assets and liabilities are presented in our Consolidated Condensed Balance Sheets on a net basis when a legally enforceable master netting arrangement exists between the counterparty to a derivative contract and us. Additionally, at December 30, 2017, and September 30, 2017, we had $33 million and $22 million, respectively, of cash collateral posted with various counterparties where master netting arrangements exist and held no cash collateral.

Schedule Of Debt Securities Measured At Fair Value On A Recurring Basis, Unobservable Input Reconciliation

The following table provides a reconciliation between the beginning and ending balance of marketable debt securities measured at fair value on a recurring basis in the table above that used significant unobservable inputs (Level 3) (in millions):

	Three Months Ended
	December 30, 2017			December 31, 2016
Balance at beginning of year	$	51		$	57
Total realized and unrealized gains (losses):
Included in earnings	—			—
Included in other comprehensive income (loss)	—			(1		)
Purchases	4			4
Issuances	—			—
Settlements	(5		)	(5		)
Balance at end of period	$	50		$	55
Total gains (losses) for the three-month period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at end of period	$	—		$	—

Schedule Of Available For Sale Securities

The following table sets forth our available-for-sale securities' amortized cost basis, fair value and unrealized gain (loss) by significant investment category (in millions):

	December 30, 2017							September 30, 2017
	Amortized Cost Basis		Fair Value		Unrealized Gain (Loss)			Amortized Cost Basis		Fair Value		Unrealized Gain (Loss)
Available-for-sale securities:
Debt securities:
U.S. treasury and agency	$	48	$	47	$	(1	)	$	47	$	47	$	—
Corporate and asset-backed	50		50		—			51		51		—

Schedule Of Fair Value And Carrying Value Of Debt

Fair value of our debt is principally estimated using Level 2 inputs based on quoted prices for those or similar instruments. Fair value and carrying value for our debt are as follows (in millions):

	December 30, 2017				September 30, 2017
	Fair Value		Carrying Value		Fair Value		Carrying Value
Total debt	$	10,058	$	9,686	$	10,591	$	10,203