Advance Payments and Deferred Revenue/Credits (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) pure / $	Dec. 31, 2015 USD ($)
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	$ 1,129.9	$ 1,141.2
B737 [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	13.2	13.8
B787 [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	923.5	909.3
Airbus Three Hundred Fifty XWB [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	162.4	183.5
Airbus - All other platforms [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	4.1	4.0
Other Inventory [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	$ 26.7	$ 30.6
Minimum [Member]
Advance payments and deferred revenue/credits summarized
Boeing Advance Payment ShipSet	1,001
Maximum [Member]
Advance payments and deferred revenue/credits summarized
Boeing Advance Payment ShipSet	1,120