Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

The useful lives of the Company’s assets are as follows:


Asset Category						Estimated Useful Life
Buildings						30 years
Building equipment						10 - 15 years
Furniture and fixtures and equipment						3 - 5 years
Leasehold improvements						Shorter of life of improvement or lease term
Right-of-use assets						Shorter of life of the asset or lease term

Property, equipment and right-of-use assets consisted of the following at December 31:


	2020		2019
	(in millions)
Building, building equipment and land	$	522	$	505
Equipment	1,321		1,218
Furniture and fixtures	99		92
Leasehold improvements	380		303
Operating lease right-of-use assets	970		810
Property, equipment and right-of-use assets	3,292		2,928
Less: Accumulated depreciation and amortization	(1,390)		(1,100)
Property, equipment and right-of-use assets, net	$	1,902	$	1,828