Fair Value Measurements and Investments (Tables)

6 Months Ended

Mar. 31, 2020

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and Liabilities Measured at Fair Value on a Recurring Basis



	Fair Value Measurements Using Inputs Considered as
	Level 1				Level 2
	March 31, 2020		September 30, 2019		March 31, 2020		September 30, 2019
	(in millions)
Assets
Cash equivalents and restricted cash equivalents:
Money market funds	$	8,864	$	6,494
U.S. government-sponsored debt securities					$	—	$	150
Investment securities:
Marketable equity securities	121		126
U.S. government-sponsored debt securities					3,149		5,592
U.S. Treasury securities	205		675
Other current and non-current assets:
Derivative instruments					768		437
Total	$	9,190	$	7,295	$	3,917	$	6,179
Liabilities
Accrued compensation and benefits:
Deferred compensation liability	$	111	$	113
Accrued and other liabilities:
Derivative instruments					$	272	$	52
Total	$	111	$	113	$	272	$	52

Schedule of Non-Marketable Equity Securities

The following table summarizes the total carrying value of the Company’s non-marketable equity securities held as of March 31, 2020 including cumulative unrealized gains and losses:



	March 31, 2020
	(in millions)
Initial cost basis	$	611
Upward adjustments	119
Downward adjustments (including impairment)	(5		)
Carrying amount, end of period	$	725

Schedule of Gains and Losses on Marketable and Non-Marketable Equity Securities

Gains and losses on the Company’s equity securities are summarized below.



	Three Months Ended March 31,					Six Months Ended March 31,
	2020			2019		2020			2019
	(in millions)
Net gain (loss) on equity securities sold during the period	$	1		$	15	$	5		$	15
Unrealized gain (loss) on equity securities held as of the end of the period	(23		)	79		(9		)	59
Total gain (loss) recognized in non-operating income (expense), net	$	(22	)	$	94	$	(4	)	$	74