Advance Payments and Deferred Revenue/Credits (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) pure / $	Dec. 31, 2015 USD ($)
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	$ 1,096.9	$ 1,141.2
B737 [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	12.6	13.8
B787 [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	901.6	909.3
Airbus Three Hundred Fifty XWB [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	155.6	183.5
Airbus - All other platforms [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	3.6	4.0
Other Inventory [Member]
Advance payments and deferred revenue/credits summarized
Advance Payments And Deferred Revenue Credits	$ 23.5	$ 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