Segment and Geographic Data (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Revenues
Manufacturing revenues									$ 12,022	$ 11,172	$ 10,307
Finance revenues									215	103	218
Total revenues	3,362	3,000	3,019	2,856	3,254	2,814	2,728	2,479	12,237	11,275	10,525
Rotor Aircraft | Manufacturing group
Revenues
Manufacturing revenues									4,274	3,525	3,241
Fixed Wing Aircraft | Manufacturing group
Revenues
Manufacturing revenues									3,111	2,990	2,563
Unmanned Aircraft Systems, Armored Security Vehicles, Precision Weapons And Other | Manufacturing group
Revenues
Manufacturing revenues									1,737	1,872	1,979
Fuel Systems and Functional Components | Manufacturing group
Revenues
Manufacturing revenues									1,842	1,823	1,640
Powered Tools, Testing and Measurement Equipment | Manufacturing group
Revenues
Manufacturing revenues									398	402	330
Golf and Turf Care Products | Manufacturing group
Revenues
Manufacturing revenues									$ 660	$ 560	$ 554