Revenues and Operating Earnings by Reportable Segment (Details) 10Q (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues $ 690.0 $ 644.7
Operating earnings before corporate allocations related to discontinued operations 125.7 114.2
Corporate allocations related to discontinued operations   (4.1)
Operating earnings 125.7 110.1
Interest expense 24.3 30.6
Earnings from continuing operations before income taxes 101.4 79.5
Commercial Aircraft    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 526.1 523.5
Operating earnings before corporate allocations related to discontinued operations 98.4 93.1
Business Jet    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 163.9 121.2
Operating earnings before corporate allocations related to discontinued operations $ 27.3 $ 21.1