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REVENUE CONTRACT LIABILITIES (Tables)
6 Months Ended
Apr. 30, 2019
Revenue Recognition and Deferred Revenue [Abstract]  
Contract with Customer, Asset and Liability [Table Text Block]
Changes in contract liabilities, current and non-current, during the six months ended April 30, 2019 were as follows:
 
Contract Liabilities
 
(in millions)
Balance at October 31, 2018
$
461

Impact of adopting new revenue standard
(64
)
Balance at November 1, 2018
397

Deferral of revenue billed in current period, net of recognition
276

Revenue recognized that was deferred as of the beginning of the period
(191
)
Foreign currency translation impact
1

Balance at April 30, 2019
$
483