Quarterly Financial Data (Unaudited)- Textuals (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					12 Months Ended																	3 Months Ended																3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 27, 2012	Jun. 28, 2012	Mar. 29, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 27, 2012 B747-8 [Member]	Mar. 29, 2012 B747-8 [Member]	Dec. 31, 2013 G280 [Member]	Dec. 31, 2012 G280 [Member]	Dec. 31, 2013 G650 [Member]	Dec. 31, 2012 G650 [Member]	Sep. 27, 2012 G650 [Member]	Sep. 27, 2012 A350 XWB non-recurring [Member]	Jun. 28, 2012 A350 XWB non-recurring [Member]	Dec. 31, 2013 Airbus Three Hundred Fifty XWB [Member]	Dec. 31, 2012 Airbus Three Hundred Fifty XWB [Member]	Dec. 31, 2013 B787 [Member]	Dec. 31, 2012 B787 [Member]	Sep. 27, 2012 B787 [Member]	Jun. 27, 2013 Rolls-Royce [Member]	Dec. 31, 2013 Rolls-Royce [Member]	Dec. 31, 2012 Rolls-Royce [Member]	Sep. 27, 2012 Rolls-Royce [Member]	Dec. 31, 2012 Gulfstream G280 [Member]	Sep. 27, 2012 Gulfstream G280 [Member]	Mar. 29, 2012 Gulfstream G280 [Member]	Dec. 31, 2013 Fuselage Systems [Member] B747-8 [Member]	Sep. 26, 2013 Fuselage Systems [Member] B747-8 [Member]	Jun. 27, 2013 Fuselage Systems [Member] B747-8 [Member]	Dec. 31, 2012 Fuselage Systems [Member] B747-8 [Member]	Dec. 31, 2013 Fuselage Systems [Member] B767 [Member]	Sep. 26, 2013 Fuselage Systems [Member] A350 XWB non-recurring [Member]	Sep. 26, 2013 Fuselage Systems [Member] Airbus Three Hundred Fifty XWB [Member]	Dec. 31, 2013 Fuselage Systems [Member] B787 [Member]	Jun. 27, 2013 Fuselage Systems [Member] B787 [Member]	Jun. 27, 2013 Propulsion Systems [Member]	Dec. 31, 2013 Propulsion Systems [Member] B767 [Member]	Sep. 26, 2013 Propulsion Systems [Member] B767 [Member]	Jun. 27, 2013 Propulsion Systems [Member] B767 [Member]	Dec. 31, 2012 Propulsion Systems [Member] B767 [Member]	Dec. 31, 2013 Propulsion Systems [Member] B787 [Member]	Dec. 31, 2013 Propulsion Systems [Member] Rolls-Royce [Member]	Dec. 31, 2013 Wing Systems [Member] B878 [Member]	Dec. 31, 2013 Wing Systems [Member] G280 [Member]	Sep. 26, 2013 Wing Systems [Member] G280 [Member]	Jun. 27, 2013 Wing Systems [Member] G280 [Member]	Dec. 31, 2013 Wing Systems [Member] G650 [Member]	Jun. 27, 2013 Wing Systems [Member] G650 [Member]	Mar. 28, 2013 Wing Systems [Member] B787 [Member]
Quarterly Information [Line Items]
Provision For Loss On Contracts	$ 1,646.5	$ 607.4				$ 1,646.5	$ 607.4		$ 2.4	$ 2.7	$ 285.5	$ 118.8	$ 450.8	$ 162.5	$ 162.5	$ 2.4	$ 6.5	$ 120.8	$ 8.9	$ 606.0	$ 184.0	$ 184.0	$ 8.4	$ 127.6	$ 115.2	$ 151.0	$ 20.0	$ 88.1	$ 10.7	$ 30.8	$ 5.3	$ 5.0	$ 6.4	$ 4.1	$ 32.7	$ 78.6	$ 333.1	$ 22.0		$ 7.5	$ 0.8	$ 4.0	$ 8.0	$ 30.6	$ 21.7	$ 21.0	$ 54.1	$ 6.4	$ 191.5	$ 43.0	$ 234.2	$ 15.3
Establishment Of A Deferred Tax Asset Valuation Allowance, Charge	382.6
Net Decrease In Operating Profit From Impact Of Changes In Profit Booking Rates And Other Matters						1,133.3	644.7																8.4																8.4
Asset Impairment Charges				3.6		3.6
Incentive Compensation Included In Unallocated Cost Of Sale				2.2		17.8
Early Retirement Incentive Included In Ten Year Agreement With Iam				1.1	1.0
Impact from severe weather event		$ 18.1	$ 218.8	$ 54.5		$ 30.3	$ (146.2)	$ 0