Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Long-Term Debt

	March 31,			December 31,
	2024			2023
	(Dollars in Millions)
4.250% Senior Notes, due 2024	$	400		$	400
7% Debentures, due 2025		125			125
3.450% Senior Notes, due 2027		299			299
3.500% Senior Notes, due 2027		492			492
2.500% Senior Notes, due 2030		472			472
2.400% Senior Notes, due 2031		890			890
6.25% Senior Notes, due 2037		229			228
4.250% Senior Notes, due 2047		590			590
3.200% Senior Notes, due 2051		850			850
Total debt		4,347			4,346
Less: current maturities		(400	)		(400	)
Long-term debt	$	3,947		$	3,946