Financial Assets and Nonrecourse Financial Liabilities of Special Purpose Entities (Details) (USD $)	9 Months Ended
	Oct. 01, 2011
Letter of credit agreements [Abstract]
Term of agreements for irrevocable letters of credit (in years)	three
Maximum amount of issued letter of credit as per agreement	$ 1,400,000,000
Amortization period of upfront commitment fee (in years)	3
Maximum amount refunded upon termination of agreement	the unamortized upfront fees less about $2 million
Substitution fees	1,000,000
Upfront fee received	7,000,000
Amount of upfront fee to be retained in case of ratings downgrade by letter of credit issuer	2,000,000
Rabobank [Member]
Letter of credit agreements [Abstract]
Letters of credit issued	1,400,000,000
Barclays Bank Plc [Member]
Letter of credit agreements [Abstract]
Letters of credit issued	500,000,000
Societe Generale [Member]
Letter of credit agreements [Abstract]
Letters of credit issued	$ 500,000,000