v3.21.4
Fair Value Measurements and Investments (Tables)
 3 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
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 1Level 2
 December 31,
2021		September 30,
2021		December 31,
2021		September 30,
2021
 (in millions)
Assets
Cash equivalents and restricted cash equivalents:
Money market funds
$11,084 $11,779 $— $— 
U.S. government-sponsored debt securities
— — 541 100 
U.S. Treasury securities
1,075 2,400 — — 
Investment securities:
Marketable equity securities
481 490 — — 
U.S. government-sponsored debt securities
— — 510 245 
U.S. Treasury securities
2,287 2,985 — — 
Other current and non-current assets:
Money market funds
4 4 — — 
Derivative instruments
— — 408 410 
Total $14,931 $17,658 $1,459 $755 
Liabilities
Accrued compensation and benefits:
Deferred compensation liability
$209 $167 $— $— 
Accrued and other liabilities:
Derivative instruments
— — 62 109 
Total $209 $167 $62 $109 
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 December 31, 2021 including cumulative unrealized gains and losses:
December 31,
2021
(in millions)
Initial cost basis$893 
Adjustments:
Upward adjustments818 
Downward adjustments (including impairment)(13)
Carrying amount, end of period$1,698 
Unrealized gains and losses included in the carrying value of the Company’s non-marketable equity securities still held as of December 31, 2021 and 2020 were as follows:
Three Months Ended
December 31,
20212020
(in millions)
Upward adjustments$224 $14 
Downward adjustments (including impairment)$— $(2)