Benefit Plans (Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in benefit obligation:
Actuarial (gain) loss	$ (514)	$ (84)
Pension Benefits
Changes in benefit obligation:
Balance at beginning of period	2,561	2,769
Interest cost	67	62	$ 80
Participants' contributions	0	0
Actuarial (gain) loss	(514)	(84)
Benefits paid	(171)	(182)
Foreign currency translation and other	(12)	(2)
Settlements	0	(2)
Balance at end of period	1,931	2,561	2,769
Change in plan assets:
Balance beginning of period	2,577	2,420
Actual return on plan assets	(374)	332
Company contributions	7	10
Participants' contributions	0	0
Benefits paid	(171)	(182)
Foreign currency translation and other	(14)	(1)
Settlements	0	(2)
Balance end of period	2,025	2,577	2,420
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status	94	16
Amounts recognized on the Consolidated Balance Sheets as of December 31:
Other assets	143	77
Other liabilities	(49)	(61)
Net amount recognized	94	16
Amounts recognized in Accumulated other comprehensive income, not yet recognized in net periodic cost (benefit):
Net actuarial (gain) loss	743	763
Net amount recognized	743	763
Postretirement Benefits
Changes in benefit obligation:
Balance at beginning of period	6	7
Interest cost	0	0
Participants' contributions	2	3
Actuarial (gain) loss	0	1
Benefits paid	(4)	(5)
Foreign currency translation and other	0	0
Settlements	0	0
Balance at end of period	4	6	7
Change in plan assets:
Balance beginning of period	0	0
Actual return on plan assets	0	0
Company contributions	2	2
Participants' contributions	2	3
Benefits paid	(4)	(5)
Foreign currency translation and other	0	0
Settlements	0	0
Balance end of period	0	0	$ 0
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status	(4)	(6)
Amounts recognized on the Consolidated Balance Sheets as of December 31:
Other assets	0	0
Other liabilities	(4)	(6)
Net amount recognized	(4)	(6)
Amounts recognized in Accumulated other comprehensive income, not yet recognized in net periodic cost (benefit):
Net actuarial (gain) loss	1	1
Net amount recognized	$ 1	$ 1