CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (142)	$ (143)
Related to marketable securities:
Total	21	(40)
Related to employee benefit plans:
Total	4	1
Related to interest rate derivative instruments:
Total	(2)	9
Comprehensive Income (Loss)	(119)	(173)
Other Comprehensive Income (Loss), Net of Tax	$ 23	$ (30)