Benefit Plans (Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Changes in benefit obligation:
Interest cost	$ 36	$ 87	$ 98
Actuarial (gain) loss	(8)	(24)
Pension Benefits
Changes in benefit obligation:
Balance at beginning of period	681	1,807
Interest cost	36	87
Participants' contributions	0	0
Actuarial (gain) loss	8	(24)
Benefits paid	(51)	(144)
Foreign currency translation and other	4	(1)
Plan amendments	0	0
Pension settlement transaction loss (gain)	5	(1,044)
Balance at end of period	683	681	1,807
Change in plan assets:
Balance beginning of period	915	1,984
Actual return on plan assets	84	115
Company contributions	5	5
Participants' contributions	0	0
Benefits paid	(51)	(144)
Foreign currency translation and other	6	(1)
Effect of pension settlement transactions	4	(1,044)
Balance end of period	963	915	1,984
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status	280	234
Amounts recognized on the Consolidated Balance Sheets as of December 31:
Other assets	318	275
Other liabilities	(38)	(41)
Net amount recognized	280	234
Amounts recognized in Accumulated other comprehensive income, not yet recognized in net periodic cost (benefit):
Net actuarial (gain) loss	208	236
Net amount recognized	208	236
Postretirement Benefits
Changes in benefit obligation:
Balance at beginning of period	4	5
Interest cost	0	0
Participants' contributions	1	1
Actuarial (gain) loss	1	0
Benefits paid	(2)	(2)
Foreign currency translation and other	0	0
Plan amendments	(2)	0
Pension settlement transaction loss (gain)	0	0
Balance at end of period	2	4	5
Change in plan assets:
Balance beginning of period	0	0
Actual return on plan assets	0	0
Company contributions	1	1
Participants' contributions	1	1
Benefits paid	(2)	(2)
Foreign currency translation and other	0	0
Effect of pension settlement transactions	0	0
Balance end of period	0	0	$ 0
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status	(2)	(4)
Amounts recognized on the Consolidated Balance Sheets as of December 31:
Other assets	0	0
Other liabilities	(2)	(4)
Net amount recognized	(2)	(4)
Amounts recognized in Accumulated other comprehensive income, not yet recognized in net periodic cost (benefit):
Net actuarial (gain) loss	(1)	2
Net amount recognized	$ (1)	$ 2