Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Stock-based compensation cost included in income from continuing operations

The following table presents total stock-based compensation cost included in income from continuing operations.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in millions)	2025		2024		2025		2024
Cost	$	67	$	56	$	199	$	165
Selling, general and administrative	233		167		694		511
Research and development	144		107		393		290
Pre-tax stock-based compensation cost	$	444	$	330	$	1,285	$	966
Income tax benefits	(228)		(131)		(578)		(353)
Total net stock-based compensation cost	$	215	$	199	$	707	$	613