Comprehensive Income (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Net income (loss)	$ 142	$ (48)	$ 261	$ 26
Other comprehensive income (loss):
Recognition of prior service cost and unrealized losses on pension and postretirement benefits	15	11	48	31
Deferred gains (losses) on hedge contracts	(17)	3	(9)	10
Recognition of foreign currency translation loss upon substantial liquidation of Canadian entity, net of income tax benefit of $17		74		74
Foreign currency translation and other	(18)	21	(3)	(20)
Comprehensive income	122	61	297	121
Comprehensive Income (Textual) [Abstract]
After tax income tax benefit on recognition of foreign currency translation loss upon liquidation	$ 17	$ 17	$ 17	$ 17