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Supplemental Financial Information (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Accounts receivable    
Trade $ 342 $ 407
Other 3 8
Accounts receivable, gross 345 415
Less: allowance for doubtful accounts (14) (17)
Total accounts receivable, net 331 398
Inventories    
Finished goods 18 19
Service parts 11 12
Total inventories 29 31
Other Assets [Abstract]    
Income tax receivable 74 15
Other 81 76
Other current assets 155 91
Property and equipment    
Land 8 8
Buildings and improvements 91 100
Finance lease assets 252 167
Machinery and other equipment 516 515
Property and equipment, gross 867 790
Less: accumulated depreciation (528) (440)
Total property and equipment, net 339 350
Other current liabilities    
Sales and value-added taxes 33 31
Pension and other postemployment plan liabilities 12 11
Other 54 49
Total other current liabilities 99 91
Deferred revenue    
Deferred revenue, current 499 472
Long-term deferred revenue 38 61
Total deferred revenue 537 533
Other long-term liabilities    
Transition tax 82 92
Uncertain tax positions 18 19
Other 36 27
Total other long-term liabilities $ 136 $ 138