Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Estimated Useful Lives Of The Assets

Property, plant, and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed on a straight-line basis over the estimated useful lives of the assets, generally, as follows:

	Useful Lives
Building	Up to 30 years
Building improvements	Up to 15 years
Leasehold improvements	Lesser of useful life or term of lease
Equipment and furniture	5 years
Operating lease assets	Greater of lease term or 1 to 5 years
Computer and office equipment	3 years
Enterprise-wide software	5 years
Purchased software	Lesser of 3 years or life of license

	December 31,
	2019		2018
Property, plant, and equipment, net:
Land	$	248.0	$	184.6
Building and building/leasehold improvements	408.3		266.2
Machinery and equipment	357.2		280.1
Operating lease assets—Intuitive System Leasing	293.8		150.2
Computer and office equipment	74.0		52.6
Capitalized software	182.2		157.8
Construction-in-process	272.5		156.7
Gross property, plant, and equipment	1,836.0		1,248.2
Less: Accumulated depreciation*	(563.1)		(436.2)
Total property, plant, and equipment, net	$	1,272.9	$	812.0
*Accumulated depreciation associated with operating lease assets—Intuitive System Leasing	(62.2)		(32.1)