Intangible Assets by Major Asset Class (Detail) (USD $) In Millions, unless otherwise specified				6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Customer contracts and relationships	Jun. 30, 2014 Customer contracts and relationships Minimum	Jun. 30, 2014 Customer contracts and relationships Maximum	Jun. 30, 2014 Acquired technologies	Jun. 30, 2014 Acquired technologies Minimum	Jun. 30, 2014 Acquired technologies Maximum	Jun. 30, 2014 Replacement parts annuity and product approvals	Jun. 30, 2014 Replacement parts annuity and product approvals Minimum	Jun. 30, 2014 Replacement parts annuity and product approvals Maximum	Jun. 30, 2014 Technical qualifications, plans and drawings	Jun. 30, 2014 Technical qualifications, plans and drawings Minimum	Jun. 30, 2014 Technical qualifications, plans and drawings Maximum	Jun. 30, 2014 Trademarks and patents	Jun. 30, 2014 Trademarks and patents Minimum	Jun. 30, 2014 Trademarks and patents Maximum	Jun. 30, 2014 Covenants not to compete and other identified intangibles	Jun. 30, 2014 Covenants not to compete and other identified intangibles Minimum	Jun. 30, 2014 Covenants not to compete and other identified intangibles Maximum	Jun. 30, 2014 Trade names	Jun. 30, 2014 Trade names Minimum	Jun. 30, 2014 Trade names Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, original cost	$ 864.3
Useful life (years)																							Indefinite
Finite lived intangible assets, original cost			549.7			141.4			7.8			17.7			23.9			39.7			84.1
Accumulated Amortization	198.2	179.8	99.1			57.1			6.3			15.2			16.0			3.5			1.0
Intangible assets, net book value	666.1	472.2
Finite lived intangible assets, net book value			$ 450.6			$ 84.3			$ 1.5			$ 2.5			$ 7.9			$ 36.2			$ 83.1
Useful life (years)				8 years	30 years		5 years	34 years		7 years	22 years		10 years	22 years		3 years	20 years		4 years	5 years		15 years