Revenues and Operating Earnings by Reportable Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,089.5		$ 850.3		$ 2,100.7		$ 1,692.5
Operating earnings	185.3	[1]	158.7	[1]	368.3	[1]	312.3	[1]
Interest expense	31.7		30.5		62.3		61.1
Earnings before income taxes	153.6		128.2		306.0		251.2
Commercial Aircraft
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	541.1		431.2		1,064.5		851.2
Operating earnings	98.3		79.7		191.4		153.9
Consumables Management
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	426.7		312.7		793.3		639.4
Operating earnings	71.1		61.3		139.9		126.1
Business Jet
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	121.7		106.4		242.9		201.9
Operating earnings	$ 15.9		$ 17.7		$ 37.0		$ 32.3

[1] Operating earnings include an allocation of corporate IT costs, employee benefits and general and administrative costs based on the proportion of each segment's systems users, number of employees and sales, respectively.