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REVENUE RECOGNITION (Tables)
 6 Months Ended
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]  
Schedule of changes in allowance for credit losses
Changes in the allowance for credit losses are as follows:

(In millions)December 31
2020
Balance at June 30, 2020$36 
ASC 326 cumulative effect adjustment (pre-tax)4 
Provision for expected credit losses7 
Write-offs, net & other(8)
Balance at December 31, 2020$39 
Schedule of significant changes in deferred revenue
Changes in deferred revenue during the period are as follows:

Three Months Ended
December 31		Six Months Ended
December 31
(In millions)2020201920202019
Deferred revenue, beginning of period$409 $392 $279 $361 
Revenue recognized that was included in the deferred revenue balance at the beginning of the period(83)(83)(173)(243)
Revenue deferred during the period92 112 308 307 
Other2 4 6 — 
Deferred revenue, end of period$420 $425 $420 $425