Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
Cash flows from operating activities:
Net loss	$ (56)	$ (220)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	106	125
Net loss on disposal of property, plant and equipment	0	47
Deferred income taxes	1	1
Stock-based compensation expense	44	44
Non-cash interest expense	9	12
Loss on debt redemptions	64	0
Other	(5)	1
Changes in operating assets and liabilities:
Accounts receivable	(40)	(39)
Inventories	(76)	(149)
Prepaid expenses and other current assets	(84)	(75)
Payable to GLOBALFOUNDRIES	(69)	(40)
Accounts payable, accrued liabilities and other	(126)	103
Net cash used in operating activities	(232)	(190)
Cash flows from investing activities:
Purchases of available-for-sale securities	(618)	(753)
Purchases of property, plant and equipment	(44)	(48)
Proceeds from sales and maturities of available-for-sale securities	488	593
Proceeds from sale of property, plant, and equipment	0	181
Net cash used in investing activities	(174)	(27)
Cash flows from financing activities:
Proceeds from issuance of common stock	2	2
Proceeds from borrowings, net	1,080	0
Net proceeds from grants	2	2
Repayments of long-term debt and capital lease obligations	(1,042)	(2)
Other	(2)	0
Net cash provided by financing activities	40	2
Net decrease in cash and cash equivalents	(366)	(215)
Cash and cash equivalents at beginning of period	869	549
Cash and cash equivalents at end of period	$ 503	$ 334