Debt and Credit Facilities (Details 3) (USD $)	0 Months Ended	12 Months Ended					12 Months Ended				12 Months Ended																							12 Months Ended							12 Months Ended
	Oct. 25, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011 4.50% convertible senior notes due 2013	Dec. 29, 2012 4.50% convertible senior notes due 2013	Dec. 29, 2012 Convertible Note	Dec. 31, 2011 Convertible Note	Jan. 01, 2011 Convertible Note	May 05, 2009 Convertible Note	Dec. 29, 2012 Convertible Note Maximum	Dec. 29, 2012 Convertible Note Minimum	Dec. 31, 2011 Manufacturing group	Dec. 29, 2012 Manufacturing group 6.50% due 2012	Dec. 31, 2011 Manufacturing group 6.50% due 2012	Dec. 29, 2012 Manufacturing group 3.875% due 2013	Dec. 31, 2011 Manufacturing group 3.875% due 2013	Dec. 29, 2012 Manufacturing group 4.50% convertible senior notes due 2013	Dec. 31, 2011 Manufacturing group 4.50% convertible senior notes due 2013	Dec. 29, 2012 Manufacturing group 4.625% due 2016	Dec. 31, 2011 Manufacturing group 4.625% due 2016	Dec. 29, 2012 Manufacturing group 6.20% due 2015	Dec. 31, 2011 Manufacturing group 6.20% due 2015	Dec. 29, 2012 Manufacturing group 5.60% due 2017	Dec. 31, 2011 Manufacturing group 5.60% due 2017	Dec. 29, 2012 Manufacturing group 7.25% due 2019	Dec. 31, 2011 Manufacturing group 7.25% due 2019	Dec. 29, 2012 Manufacturing group 6.625% due 2020	Dec. 31, 2011 Manufacturing group 6.625% due 2020	Dec. 29, 2012 Manufacturing group 5.95% due 2021	Dec. 31, 2011 Manufacturing group 5.95% due 2021	Dec. 29, 2012 Manufacturing group Other (weighted-average rate of 1.52% and 3.72%, respectively)	Dec. 31, 2011 Manufacturing group Other (weighted-average rate of 1.52% and 3.72%, respectively)	Dec. 29, 2012 Finance group	Dec. 31, 2011 Finance group	Jan. 01, 2011 Finance group	Dec. 29, 2012 Finance group Variable-rate note due 2013 (weighted-average rate of 1.21% and 1.41%, respectively)	Dec. 31, 2011 Finance group Variable-rate note due 2013 (weighted-average rate of 1.21% and 1.41%, respectively)	Dec. 29, 2012 Finance group Securitized debt (weighted-average rate of 1.55% and 2.08%, respectively)	Dec. 31, 2011 Finance group Securitized debt (weighted-average rate of 1.55% and 2.08%, respectively)	Dec. 29, 2012 Finance group 6% Fixed-to-Floating Rate Junior Subordinated Notes	Dec. 31, 2011 Finance group 6% Fixed-to-Floating Rate Junior Subordinated Notes
Debt Instrument
Interest rate														6.50%	6.50%	3.875%	3.875%	4.50%	4.50%	4.625%	4.625%	6.20%	6.20%	5.60%	5.60%	7.25%	7.25%	6.625%	6.625%	5.95%	5.95%										6.00%	6.00%
Weighted average interest rate (as a percent)																																1.52%	3.72%				1.21%	1.41%	1.55%	2.08%
Face value of the notes							$ 215,000,000	$ 216,000,000		$ 600,000,000																															$ 300,000,000
Debt discount on convertible notes at date of issuance										134,000,000
Effective interest rate of the convertible notes coupon rate (as a percent)											11.72%	4.50%
Cash and non-cash interest expense incurred							25,000,000	58,000,000	60,000,000
Unamortized discount							5,000,000	21,000,000
Initial conversion rate of shares of common stock issuable per $1000 in principal amount of convertible notes							76.1905
Initial conversion price per share							$ 13.125
Lot size of principal amount of Convertible Notes for conversion into common stock		1,000
Stock Price on December 29, 2012		$ 24.12
Amount if converted value in excess of face amount						180,000,000
Potential incremental cash payment in excess of the face amount of the notes upon conversion of convertible notes, after giving effect to the exercise of the call options and warrants						137,000,000
Potential incremental share settlement in excess of the face amount of the notes that could be issued upon conversion of convertible notes, after giving effect to the exercise of the call options and warrants						5,700,000
Principal amount of convertible notes tendered by holders								225,000,000
Purchased convertible notes in a small number of privately negotiated transactions								151,000,000
Retired in holder-initiated conversion								8,000,000
Cash paid for tendered/purchased convertible notes					580,000,000
Fair value of convertible notes purchased					398,000,000
Equity component of purchased convertible notes					182,000,000
Carrying amount of purchased convertible notes					343,000,000
Pretax loss on early extinguishment of debt					(55,000,000)
Shareholders' equity reduction					182,000,000
Number of shares of common stock covered under call option before reduction	45,700,000
Number of shares of common stock covered under call option after reduction	28,600,000
Number of common shares covered by the warrants after reduction	28,000,000
Proceeds from call option transaction	135,000,000
Payment under warrant transaction	133,000,000
Number of shares of common stock covered under call option after additional reduction	16,500,000
Number of common shares covered by the warrants after additional reduction	16,500,000
Principal amount of convertible notes outstanding																		210,000,000	195,000,000
Net proceeds from issuance of long-term debt		106,000,000	926,000,000	231,000,000									496,000,000																					106,000,000	430,000,000	231,000,000
Fixed interest rate on notes (as a percent)																																									6.00%
Floating variable rate of debt instrument (as a percent)																																									1.735%
Minimum fixed charge coverage required to be maintained by TFC (as a percent)		125.00%
Minimum shareholder's equity required to be maintain by TFC		200,000,000
Cash paid to TFC to maintain compliance with covenants		240,000,000	182,000,000	383,000,000
Debt Instrument, Maturity Date							May 01, 2013																																		Feb. 15, 2067
Debt instrument initial fixed rate duration description																																									Until February 15, 2017
Debt instrument description of variable rate basis after specified term at fixed rate																																									Three-month London Interbank Offered Rate
Debt Instrument call date earliest																																									Feb. 15, 2017
Debt Instrument call date latest																																									Feb. 15, 2042
Replacement capital covenant call date																																									Feb. 15, 2047
Maximum value of capped calls		75,000,000
Exercise price of common share (in dollars per share)		$ 15.75
Amount received from counterparties related to amendment of call option and warrant transaction	20,000,000
Right to acquire shares from counterparties related to amendment of call option and warrant transaction		16,400,000
Effective Conversion Price of convertible notes before call option and warrant effect		$ 13.125
Effective Conversion Price of convertible notes after call option and warrant effect		$ 15.75
Cost of Capped call transaction with counterparties	32,000,000
Common stock covered under capped call transaction (in shares)	17,100,000
Common shares covered under capped call		28,700,000
Strike price of capped calls		$ 13.125
Cap price of capped calls		$ 15.75
Expiration date of capped call		May 2013
Minimum Stock Price (in dollars per share)		$ 13.125
Maximum stock price		$ 15.75
Market value of common stock below which capped call expires with no value (in dollars per share)		$ 13.125
Minimum stock price on specified maximum capped value (in dollars per share)		$ 15.75
Value of additional capped call transaction paid in lieu of amount due from amendment of option and warrant transactions	$ 20,000,000
Additional shares of common stock covered upon amendment of capped call transaction	11,500,000