Transactions with Total (Details) (USD $)	6 Months Ended	12 Months Ended						1 Months Ended	12 Months Ended	1 Months Ended		12 Months Ended
	Jul. 01, 2012	Jan. 01, 2012	Jun. 28, 2011	Jun. 21, 2011	Jun. 14, 2011	Jun. 13, 2011	Apr. 28, 2011	Feb. 28, 2012 Total [Member]	Dec. 30, 2012 Total [Member]	Jan. 31, 2012 Total [Member] Private Placement [Member]	Jan. 31, 2012 Tenesol [Member] Total [Member]	Dec. 30, 2012 Total [Member]	Jan. 01, 2012 Total [Member]	Jun. 21, 2011 Total [Member]	Jun. 13, 2011 Total [Member]	Apr. 28, 2011 Total [Member]	Jun. 21, 2011 Total [Member] Common Class A [Member]	Jun. 13, 2011 Total [Member] Common Class A [Member]	Apr. 28, 2011 Total [Member] Common Class A [Member]	Jun. 21, 2011 Total [Member] Common Class B [Member]	Jun. 13, 2011 Total [Member] Common Class B [Member]	Apr. 28, 2011 Total [Member] Common Class B [Member]
Tender Offer Agreement, Date							4/28/2011
Tender Offer Agreement, Percentage of Outstanding Share to be Acquired Under Agreement																60.00%			60.00%
Tender Offer Agreement, Purchase Price per Share																$ 23.25			$ 23.25			$ 23.25
Tender Offer Agreement, Expiration Date					6/14/2011
Tender Offer Agreement, Payment Date				6/21/2011
Tender Offer Agreement, Shares Purchased																	34,756,682			25,220,000
Tender Offer Agreement, Percentage of Outstanding Shares Acquired															60.00%			60.00%			60.00%
Tender Offer Agreement, Outstanding Shares Calculation Date						6/13/2011
Tender Offer Agreement, Total Purchase Price														$ 1,400,000,000
Tender Offer Agreement, Guaranty Fees Incurred												6,900,000	2,200,000
Tender Offer Agreement, Date of European Commission Clearance			6/28/2011
Tender Offer Agreement, Voting Power Restricted by Affiliation Agreement	100.00%
Tender Offer Agreement, Percent of Shares Able to Transfer Restricted By Affiliation Agreement	40.00%
Tender Offer Agreement, Registration Rights Agreement Termination, Shares Held Minimum Percentage Threshold		5.00%
Tender Offer Agreement, Registration Rights Agreement Termination, Number of Days Shares Can Be Resold		90 days
Tender Offer Agreement, Percent of Shares Owned by Total and Subsidiaries Under Amended Bylaws	30.00%
Business Acquisition, Cost of Acquired Entity, Purchase Price											165,400,000
Sale of Stock, Number of Shares Issued in Transaction										18,600,000
Sale of Stock, Price Per Share										$ 8.80
Sale of Stock, Percentage of Ownership after Transaction										66.00%
Liquidity Support Facility, Maximum Capacity								600,000,000
Liquidity Support Facility, Available Capacity									325,000,000
Liquidity Support Facility, Unrestricted Cash, Cash Equivalents and Unused Borrowing Capacity, Threshold for Liquidity Support								100,000,000
Liquidity Support Facility, Utilized Capacity									275,000,000
Liquidity Support Facility, Warrant, Numerator For Warrant Shares Calculation								75,000,000
Liquidity Support Facility, Warrant, Minimum Amount of Outstanding Convertible Debt Required to be Outstanding								25,000,000
Liquidity Support Facility, Warrant, Maximum Ownership Percentage Allowed								74.99%
Liquidity Support Facility, Warrant, Trading Period For Warrant Shares Calculation								30 days
Liquidity Support Facility, Warrant Term								7 years
Liquidity Support Facility, Warrant Issued, Number of Common Stock Shares								9,531,677
Liquidity Support Facility, Warrant Issued, Exercise Price Per Share								$ 7.8685
Liquidity Support Facility, Time Period After Calendar Quarter For Required Cash Payments								30 days
Liquidity Support Facility, Unused Capacity, Commitment Fee Percentage								0.25%
Liquidity Support Facility, Guarantee Fee, Percent of Average Guaranteed Debt								2.75%
Liquidity Support Facility, Basis Spread LIBOR Rate								5.00%
Liquidity Support Facility, Commitment Fees									4,900,000
Business Acquisition, Percentage of Voting Interests Acquired											100.00%
Master Agreement, Maximum R&D Funding									$ 2,500,000