Inventory (Details 4) (USD $) In Millions, unless otherwise specified	Mar. 28, 2013	Dec. 31, 2012
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	$ 510.0	$ 524.6
B747 [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production		7.2
Inventory Type Five [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	181.9	189.5
G650 [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	203.3	208.4
G280 [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	5.4	5.5
Airbus Three Hundred Fifty XWB [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	56.8	56.8
Inventory Type Eight [Member]
Capitalized Preproduction Costs Included In Inventory [Abstract]
Total capitalized pre-production	$ 49.0	$ 51.4