v3.22.2.2
Fair Value Measures and Disclosures (Tables)
 12 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis The following table sets forth the Company’s financial assets and liabilities that were measured at fair value on a recurring basis and the fair value measurement for such assets and liabilities at June 30, 2022 and 2021, respectively:
(Dollars in millions)Basis of Fair Value Measurement
June 30, 2022TotalLevel 1Level 2Level 3
Assets:
Marketable securities$89 $89 $— $— 
Interest-rate swap36 — 36 — 
Trading securities$2 $2 $— $— 
June 30, 2021
Assets:
Marketable securities$71 $71 $— $— 
Interest-rate swap2 — 2 — 
Trading securities$1 $1 $— $— 
Liabilities:
Series A Preferred Stock derivative liability$3 $— $— $3 
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
The following table sets forth a summary of changes in the estimated fair value of the Series A Preferred Stock derivative liability from June 30, 2021 to June 30, 2022:

(Dollars in millions)
Fair Value Measurement of
Series A Preferred Stock
Derivative Liability
Using Significant
Unobservable Inputs (Level 3)
Balance at June 30, 2021$3 
Change in estimated fair value of Series A Preferred Stock derivative liability(2)
Settlement of derivative liability upon Final Conversion(1)
Balance at June 30, 2022$—