Share-Based Compensation (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Compensation expense recorded in net income for share based compensation plans
Compensation expense	$ 86	$ 71	$ 50
Income tax benefit	(32)	(26)	(18)
Total net compensation cost included in net income	54	45	32
Attribution of fair value of options issued and portion of previously granted options for which requisite service has been rendered	26	23	17
Compensation costs associated with unvested awards not recognized	61
Recognize compensation expense for unvested awards subject only to service conditions over a weighted average period	2 years
Stock option activity under the plan
Exercise of stock options (in shares)	(1,333,000)	(1,159,000)	(177,000)
2007 Long term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Maximum shares authorized for issuance	12,000,000
Deferred Income Plan
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of base salary of Textron Executives that can be deferred	25.00%
Maximum percentage of annual long term incentive and other compensation of Executives	80.00%
Aggregate intrinsic value of amounts paid under the plan	1	1	1
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Maximum term of options	10 years
Vesting period	3 years
Weighted average assumptions used in Black Scholes
Fair value of options at grant date	$ 9.69	$ 10.19	$ 9.84
Dividend yield (as a percent)	0.30%	0.30%	0.30%
Expected Volatility (as a percent)	37.00%	40.00%	38.00%
Risk-free interest rate (as a percent)	0.90%	0.90%	2.40%
Expected term (in years)	5 years 6 months	5 years 6 months	5 years 6 months
Stock option activity under the plan
Outstanding at beginning of period, number of stock options (in shares)	9,484,000
Grants in periods, number of options (in shares)	2,169,000
Exercise of stock options (in shares)	(1,408,000)
Canceled, expired or forfeited in period, number of options (in shares)	(1,227,000)
Outstanding at the end of period, number of stock options (in shares)	9,018,000	9,484,000
Exercisable options, number (in shares)	4,362,000
Weighted Average Exercise Price
Weighted Average Exercise Price, Beginning of Period	$ 27.98
Granted in Period, Weighted Average Exercise Price	$ 28.47
Exercises in Period, Weighted Average Exercise Price	$ (23.38)
Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ (37.13)
Weighted Average Exercise Price, End of Period	$ 27.57	$ 27.98
Exercisable, Weighted Average Exercise Price	$ 27.23
Aggregate intrinsic value of outstanding options	88
Weighted average remaining contractual life of outstanding stock options	6 years
Aggregate intrinsic value of exercisable options	47
Weighted average remaining contractual life of exercisable options	5 years
Aggregate intrinsic value of options exercised	$ 10	$ 11	$ 2
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Maximum shares awarded to restricted stock or other full value awards	3,000,000