BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2023

The range of useful lives for the major components of the Company’s plant and equipment is as follows:


Buildings and leasehold improvements			15 – 40 years
Machinery and equipment
Furnaces			4 – 15 years
Information systems			5 – 10 years
Equipment			5 – 20 years

Property, plant and equipment consist of the following (in millions):


	December 31,
	2023		2022
Land	$	168	$	166
Buildings and leasehold improvements	1,263		1,221
Machinery and equipment	5,402		5,220
Construction in progress	665		522
	7,498		7,129
Accumulated depreciation	(3,657)		(3,400)
Property, plant and equipment, net	$	3,841	$	3,729

The Company's outstanding obligations under the programs for the twelve months ended December 31, 2023 and 2022 are as follows (in millions):


	Twelve Months Ended December 31,
	2023		2022
Confirmed obligations outstanding at the beginning of the year	$	234	$	226
Invoices confirmed during the year	569		656
Confirmed invoices paid during the year	(592)		(648)
Confirmed obligations outstanding at the end of the year	$	211	$	234