Pension Plans and Other Post Employment Benefit Plans- Annuity (Details) - Pension Plan - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan	$ 1,100
Settlement Gain (Loss)		$ 25	$ 0	$ 27	$ 1
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate				4.60%		2.82%
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		$ 110