Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Net loss	$ (146)	$ (590)
Unrealized gains (losses) on cash flow hedges:
Unrealized gains (losses) arising during period, net of tax effect of $(1) and $1	(1)	1
Reclassification adjustment for (gains) losses realized and included in net income (loss), net of tax effect of zero	0	1
Other comprehensive income (loss), cash flow hedges, net of tax	(1)	2
Total other comprehensive income (loss)	(1)	2
Total comprehensive loss	$ (147)	$ (588)