Supplemental Financial Information (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable
Trade	$ 407	$ 590
Other	8	12
Accounts receivable, gross	415	602
Less: allowance for doubtful accounts	(17)	(14)
Total accounts receivable, net	398	588
Inventories
Finished goods	19	16
Service parts	12	12
Total inventories	31	28
Property and equipment
Land	8	8
Buildings and improvements	100	84
Finance lease assets	167
Finance lease assets		52
Machinery and other equipment	515	495
Property and equipment, gross	790
Property and equipment, gross		639
Less: accumulated depreciation	(440)
Less: accumulated depreciation		(344)
Total property and equipment, net	350
Total property and equipment, net		295
Other current liabilities
Sales and value-added taxes	31	34
Pension and other postemployment plan liabilities	11	10
Other	49	74
Total other current liabilities	91	118
Deferred revenue
Deferred revenue, current	472	490
Long-term deferred revenue	61	105
Total deferred revenue	533	595
Other long-term liabilities
Transition tax	92	102
Uncertain tax positions	19	17
Other	27	8
Total other long-term liabilities	$ 138	$ 127