Fair Value Measurements (Tables)

3 Months Ended

Dec. 25, 2016

Notes to Financial Statements [Abstract]

Fair value hierarchy for assets and liabilities measured at fair value on a recurring basis

The following table presents the Company’s fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at December 25, 2016 (in millions):

	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents	$	2,385	$	3,850	$	—	$	6,235
Marketable securities
U.S. Treasury securities and government-related securities	915		975		—		1,890
Corporate bonds and notes	—		17,747		—		17,747
Mortgage- and asset-backed and auction rate securities	—		1,524		42		1,566
Equity and preferred securities and equity funds	88		476		—		564
Debt funds	—		1,133		—		1,133
Total marketable securities	1,003		21,855		42		22,900
Derivative instruments	—		11		—		11
Other investments	330		—		—		330
Total assets measured at fair value	$	3,718	$	25,716	$	42	$	29,476
Liabilities
Derivative instruments	$	—	$	21	$	—	$	21
Other liabilities	329		—		—		329
Total liabilities measured at fair value	$	329	$	21	$	—	$	350

Activity for marketable securities classified within Level 3 of the valuation hierarchy

The following table includes the activity for mortgage- and asset-backed and auction rate securities classified within Level 3 of the valuation hierarchy (in millions):

	Three Months Ended
	December 25, 2016			December 27, 2015
Beginning balance of Level 3	$	43		$	224
Total realized and unrealized gains or losses:
Included in other comprehensive income (loss)	—			(1		)
Sales	—			(1		)
Settlements	(1		)	(36		)
Transfers out of Level 3	—			(12		)
Ending balance of Level 3	$	42		$	174