Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Cash flows from operating activities:
Net income (loss)	$ 25	$ (71)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	141	154
Amortization of debt issuance costs and discount	10	11
Share-based compensation	15	12
Deferred income taxes	(10)	3
Unrealized gain on forward interest rate swaps	(1)	(2)
Other, net	2	4
Changes in operating assets and liabilities:
Accounts receivable, net	104	43
Inventories, net	(68)	35
Other assets	15	21
Accounts payable	22	51
Accrued liabilities	(30)	(74)
Deferred revenue	20	4
Income taxes	(35)	(61)
Other operating activities	(7)	(6)
Net cash provided by operating activities	203	124
Cash flows from investing activities:
Purchases of property, plant and equipment	(22)	(35)
Purchases of long-term investments	0	(1)
Net cash used in investing activities	(22)	(36)
Cash flows from financing activities:
Payment of long-term debt	(240)	(213)
Proceeds from Issuance of Long-term Debt	0	68
Proceeds from exercise of stock options and stock purchase plan purchases	7	5
Taxes paid related to net share settlement of equity awards	(5)	(6)
Net cash used in financing activities	(238)	(146)
Effect of exchange rate changes on cash	(4)	7
Net decrease in cash and cash equivalents	(61)	(51)
Cash and cash equivalents at beginning of year	156	192
Cash and cash equivalents at end of year	95	141
Supplemental disclosures of cash flow information:
Income taxes paid	43	52
Interest paid	$ 70	$ 99