Accounting Policies - Schedule of Other (Income) Expense, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Other components of net periodic benefit cost	$ (45)	$ (32)	$ 79
Net (income) loss from investments	(17)	1	19
Other (income) expense, net	(62)	(31)	98
Settlement charge	$ 3	$ 3	$ 113