Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2024

Supplemental Cash Flow Elements [Abstract]

Schedule of Noncash Investing and Financing Activities

Noncash investing and financing activities are as follows:

	Nine Months Ended
	September 30,
	2024		2023
	(Dollars in Millions)
Accrued liabilities for purchases of property, plant and equipment	$	45	$	65
Right-of-use assets obtained in exchange for new    operating lease liabilities	$	53	$	37
Right-of-use assets obtained in exchange for    new finance lease liabilities	$	14	$	19
Remeasurement of operating lease right-of-use assets	$	6	$	6
Remeasurement of finance lease right-of-use assets	$	27	$	—
Acquisition of assets through asset exchange	$	—	$	5

Supplemental Disclosures of Cash Flow Information

Supplemental disclosures of cash flow information are as follows:

	Nine Months Ended
	September 30,
	2024		2023
	(Dollars in Millions)
Cash paid for interest, net of capitalized amount	$	118	$	121
Cash paid for income taxes, net of refunds	$	385	$	203