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Supplemental Financial Information (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Accounts receivable    
Trade $ 591 $ 635
Other 6 3
Accounts receivable, gross 597 638
Less: allowance for doubtful accounts (17) (19)
Total accounts receivable, net 580 619
Inventories    
Finished goods 32 21
Service parts 17 17
Total inventories 49 38
Other current assets    
Current deferred tax assets 0 28
Other 52 53
Total other current assets 52 81
Property and equipment    
Land 8 8
Buildings and improvements 78 77
Machinery and other equipment 336 341
Property and equipment, gross 422 426
Less: accumulated depreciation (279) (267)
Total property and equipment, net 143 159
Other assets    
Available-for-sale securities 0 78
Other 20 20
Total other assets 20 98
Other current liabilities    
Sales and value-added taxes 35 40
Other 67 61
Total other current liabilities 102 101
Deferred revenue    
Deferred revenue, current 367 370
Long-term deferred revenue 15 18
Total deferred revenue $ 382 $ 388