Inventories (Tables)

3 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories consisted of:

($ in millions)	March 31, 2024		December 31, 2023
Finished goods	$	435	$	566
Raw materials	189		110
Work in process	673		684
Supplies	70		65
Total (approximates current cost)	$	1,367	$	1,425
Decrease to last in, first out (“LIFO”) costs	(3)		—
	$	1,364	$	1,425
Recognized as:
Inventories	$	1,263	$	1,315
Other assets	101		110
Inventories valued under the LIFO method	135		105

Schedule of Inventory, Noncurrent

Inventories consisted of:

($ in millions)	March 31, 2024		December 31, 2023
Finished goods	$	435	$	566
Raw materials	189		110
Work in process	673		684
Supplies	70		65
Total (approximates current cost)	$	1,367	$	1,425
Decrease to last in, first out (“LIFO”) costs	(3)		—
	$	1,364	$	1,425
Recognized as:
Inventories	$	1,263	$	1,315
Other assets	101		110
Inventories valued under the LIFO method	135		105