Changes in Estimates (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended			12 Months Ended			3 Months Ended	12 Months Ended			12 Months Ended				3 Months Ended	12 Months Ended				12 Months Ended				12 Months Ended		3 Months Ended	12 Months Ended			12 Months Ended			12 Months Ended					12 Months Ended
	Sep. 27, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 A350 XWB Recurring Fuselage [Member]	Dec. 31, 2013 B787 [Member]	Dec. 31, 2013 B787 [Member]	Dec. 31, 2012 B787 [Member]	Sep. 27, 2012 B787 [Member]	Dec. 31, 2013 G650 [Member]	Dec. 31, 2012 G650 [Member]	Sep. 27, 2012 G650 [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, 2013 G280 [Member]	Dec. 31, 2012 G280 [Member]	Dec. 31, 2013 A350 XWB [Member]	Dec. 31, 2012 A350 XWB [Member]	Sep. 26, 2013 A350 XWB non-recurring [Member]	Dec. 31, 2013 A350 XWB non-recurring [Member]	Dec. 31, 2012 A350 XWB non-recurring [Member]	Sep. 27, 2012 A350 XWB non-recurring [Member]	Jun. 28, 2012 A350 XWB non-recurring [Member]	Dec. 31, 2013 B747-8 [Member]	Dec. 31, 2012 B747-8 [Member]	Sep. 27, 2012 B747-8 [Member]	Mar. 29, 2012 B747-8 [Member]	Dec. 31, 2013 B767 [Member]	Dec. 31, 2012 B767 [Member]	Jun. 27, 2013 Wing Systems [Member] B787 [Member]	Dec. 31, 2013 Wing Systems [Member] B787 [Member]	Dec. 31, 2012 Wing Systems [Member] B787 [Member]	Mar. 28, 2013 Wing Systems [Member] B787 [Member]	Dec. 31, 2013 Wing Systems [Member] G650 [Member]	Dec. 31, 2012 Wing Systems [Member] G650 [Member]	Jun. 27, 2013 Wing Systems [Member] G650 [Member]	Dec. 31, 2013 Wing Systems [Member] G280 [Member]	Dec. 31, 2012 Wing Systems [Member] G280 [Member]	Dec. 31, 2011 Wing Systems [Member] G280 [Member]	Sep. 26, 2013 Wing Systems [Member] G280 [Member]	Jun. 27, 2013 Wing Systems [Member] G280 [Member]	Dec. 31, 2012 Wing Systems [Member] A350 XWB non-recurring [Member]	Dec. 31, 2011 Wing Systems [Member] A350 XWB non-recurring [Member]	Dec. 31, 2012 Wing Systems [Member] B747-8 [Member]	Dec. 31, 2011 Wing Systems [Member] B747-8 [Member]
Change In Estimate [Line Items]
Net Forward Loss Charge Recorded	$ 590.0	$ 1,133.3		$ 78.6	$ 384.7	$ 422.0	$ 184.0		$ 288.3	$ 162.5			$ 21.7	$ 151.0		$ 240.9	$ 118.8	$ 78.6		$ 32.7	$ 32.7	$ 8.9			$ 41.1	$ 11.5			$ 16.4	$ 8.0	$ 37.3	$ 58.3	$ 184.0		$ 288.3	$ 162.5		$ 240.9	$ 118.8	$ 81.8			$ 8.9	$ 3.0	$ 5.1	$ 5.7
Provision For Loss On Contracts		1,646.5	607.4		606.0	606.0	184.0	184.0	450.8	162.5	162.5	8.4	127.6	115.2	151.0	285.5	118.8	120.8	8.9				2.4	6.5			2.4	2.7						15.3	43.0		234.2	54.1			6.4	191.5
Total Forward Loss, Net													13.3
Net Decrease In Operating Profit From Impact Of Changes In Profit Booking Rates And Other Matters		1,133.3	644.7									8.4
Decrease In Net Earnings From Impact Of Changes In Profit Booking Rates And Other Matters		$ 713.0	$ 412.0
Decrease In Diluted Earnings Per Share From Impact Of Changes In Profit Booking Rates And Other Matters (in dollars per share)		$ 5.04	$ 2.88