Restatement - Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2016	Apr. 04, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ (26)	$ (25)
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	65	28
Inventories	12	(25)
Other assets	0	(13)
Accounts payable	20	(27)
Accrued liabilities	(35)	10
Deferred revenue	4	29
Income taxes	(47)	(33)
Net cash provided by operating activities	96	36
Effect of exchange rate changes on cash	3	$ (11)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	(29)
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	68
Inventories	9
Other assets	(1)
Accrued liabilities	(28)
Deferred revenue	3
Income taxes	(50)
Net cash provided by operating activities	95
Effect of exchange rate changes on cash	4
Restatement Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	3
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	(3)
Inventories	3
Other assets	1
Accrued liabilities	(7)
Deferred revenue	1
Income taxes	3
Net cash provided by operating activities	1
Effect of exchange rate changes on cash	$ (1)