Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

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:


	2022		2021
	(in millions)
Building, building equipment and land	$	652	$	615
Equipment	1,711		1,456
Furniture and fixtures	96		96
Leasehold improvements	376		371
Operating lease right-of-use assets	1,075		983
Property, equipment and right-of-use assets	3,910		3,521
Less: Accumulated depreciation and amortization	(1,904)		(1,614)
Property, equipment and right-of-use assets, net	$	2,006	$	1,907