Schedule I - Condensed Financial Information Of Parent Other Income (Expense), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Nonoperating Income (Expense) [Line Items]
Non-service cost components of net periodic benefit income	$ 184	$ 136	$ 116
Donations	(26)	(9)	(25)
Total other expense, net	226	202	151
Parent Company
Other Nonoperating Income (Expense) [Line Items]
Non-service cost components of net periodic benefit income	3	1	1
Donations	(15)	0	(8)
Other expense, net	(1)	(1)	(1)
Total other expense, net	$ (13)	$ 0	$ (8)