Reorganization Of Businesses (Reorganization Of Businesses Accruals) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Restructuring Reserve [Roll Forward]
Accruals at January 1, 2013	$ 35
Additional Charges	16
Adjustments	(5)
Amount Used	(15)
Accruals at March 30, 2013	31
Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Accruals at January 1, 2013	4
Additional Charges	0
Adjustments	0
Amount Used	0
Accruals at March 30, 2013	4
Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Accruals at January 1, 2013	31
Additional Charges	16
Adjustments	(5)
Amount Used	(15)
Accruals at March 30, 2013	$ 27