Goodwill and Intangible Assets (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011	Jan. 01, 2011 Company	Jan. 02, 2010
Goodwill and Intangible Assets (Textual) [Abstract]
Number of companies acquired			4
Business acquisition cost			$ 57
Business acquisition goodwill purchase price			22
Amortizable intangible assets			14
Impairment charges				80
Impairment of Intangible Assets, Finite-lived	41
Total amortization expense		51	52	52
Estimated amortization expense for 2012		39
Estimated amortization expense for 2013		37
Estimated amortization expense for 2014		35
Estimated amortization expense for 2015		33
Estimated amortization expense for 2016		28
Customer agreements and contractual relationships [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Impairment of Intangible Assets, Finite-lived	37
Patents and technology
Goodwill and Intangible Assets (Textual) [Abstract]
Impairment of Intangible Assets, Finite-lived	$ 4