Pension Benefits Fair Value of Plan Assets, Unobservable Input Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	$ 438
Fair Value of Plan Assets at end of year	307	$ 438
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	50
Fair Value of Plan Assets at end of year	55	50
Real estate trust funds
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	35
Fair Value of Plan Assets at end of year	36	35
Real estate trust funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	35	34
Relating to assets still held at the reporting date	5	3
Purchases, sales and settlements	0	(1)
Foreign currency translation and other	(4)	(1)
Fair Value of Plan Assets at end of year	36	35
Hedge Funds
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	11
Fair Value of Plan Assets at end of year		11
Hedge Funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	11	9
Relating to assets still held at the reporting date	1	2
Purchases, sales and settlements	(10)	0
Foreign currency translation and other	(2)	0
Fair Value of Plan Assets at end of year	0	11
Insurance contracts
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	4
Fair Value of Plan Assets at end of year	2	4
Insurance contracts | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	4	7
Relating to assets still held at the reporting date	0	0
Purchases, sales and settlements	0	(3)
Foreign currency translation and other	(2)	0
Fair Value of Plan Assets at end of year	2	4
Private Lending Funds
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at end of year	17
Private Lending Funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract]
Fair Value of Plan Assets at beginning of year	0	0
Relating to assets still held at the reporting date	(2)	0
Purchases, sales and settlements	19	0
Foreign currency translation and other	0	0
Fair Value of Plan Assets at end of year	$ 17	$ 0