Supplemental Cash Flow Statement Disclosures (Tables)

12 Months Ended

Dec. 31, 2023

Supplemental Cash Flow Statement Disclosures

Schedule of cash, cash equivalents and restricted cash

	December 31,
($ in millions)	2023		2022
Beginning of period:
Cash and cash equivalents	$	548	$	563
Current restricted cash (included in other current assets)		10		16
Total cash, cash equivalents and restricted cash	$	558	$	579
End of period:
Cash and cash equivalents	$	695	$	548
Current restricted cash (included in other current assets)		15		10
Total cash, cash equivalents and restricted cash	$	710	$	558

Summary of PP&E acquired but not yet paid

	December 31,
($ in millions)	2023		2022
Beginning of period:
PP&E acquired but not yet paid	$	392	$	540
End of period:
PP&E acquired but not yet paid	$	204	$	392