Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Cash flows from operating activities:
Net income (loss)	$ 8	$ (26)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	69	77
Amortization of debt issuance costs and discount	4	5
Share-based compensation	7	9
Deferred income taxes	(9)	3
Unrealized gain on forward interest rate swaps	0	(1)
Other, net	1	3
Changes in operating assets and liabilities:
Accounts receivable, net	79	65
Inventories, net	(31)	12
Other assets	17	0
Accounts payable	(49)	20
Accrued liabilities	(3)	(35)
Deferred revenue	30	4
Income taxes	(2)	(47)
Other operating activities	(4)	7
Net cash provided by operating activities	117	96
Cash flows from investing activities:
Purchases of property, plant and equipment	(13)	(19)
Purchases of long-term investments	0	(1)
Net cash used in investing activities	(13)	(20)
Cash flows from financing activities:
Payment of long-term debt	(80)	(80)
Proceeds from exercise of stock options and stock purchase plan purchases	4	3
Taxes paid related to net share settlement of equity awards	(2)	0
Net cash used in financing activities	(78)	(77)
Effect of exchange rate changes on cash	(2)	3
Net increase in cash and cash equivalents	24	2
Cash and cash equivalents at beginning of year	156	192
Cash and cash equivalents at end of year	180	194
Supplemental disclosures of cash flow information:
Income taxes paid	5	29
Interest paid	$ 16	$ 26