CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (132)	$ (142)
Related to marketable securities:
Total	1	21
Related to employee benefit plans:
Total	3	4
Related to interest rate derivative instruments:
Total	1	(2)
Comprehensive Income (Loss)	(127)	(119)
Other Comprehensive Income (Loss), Net of Tax	$ 5	$ 23