Pension and Other Postretirement Employee Benefit Plans (Funded Status of Pension and Postretirement Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Pension Benefits
Change in plan assets:
Fair value of plan assets at beginning of year	$ 2,704
Fair value of plan assets at end of year	2,693	$ 2,704
Pension Benefits | U.S. Pension Benefits
Change in pension benefit obligation:
Benefit obligation at beginning of year	(1,858)	(1,909)
Service cost	0	0
Interest cost	(90)	(97)
Employee/retiree contributions	0	0
Benefits and other expenses paid	152	155
Actuarial gain (loss)	47	(52)
Amendments, settlements and curtailments	46	45
Foreign exchange rate impact and other	0	0
Benefit obligation at end of year	(1,703)	(1,858)
Change in plan assets:
Fair value of plan assets at beginning of year	1,889	1,857
Actual return on plan assets	214	222
Employer contributions	8	10
Employee/retiree contributions	0	0
Amendments and settlements	(45)	(45)
Benefits and other expenses paid	(152)	(155)
Foreign exchange rate impact and other	0	0
Fair value of plan assets at end of year	1,914	1,889
Funded status	211	31
Pension Benefits | Foreign Plan
Change in pension benefit obligation:
Benefit obligation at beginning of year	(1,349)	(1,168)
Service cost	(32)	(30)
Interest cost	(45)	(46)
Employee/retiree contributions	(8)	(7)
Benefits and other expenses paid	50	47
Actuarial gain (loss)	29	(99)
Amendments, settlements and curtailments	16	13
Foreign exchange rate impact and other	36	(59)
Benefit obligation at end of year	(1,303)	(1,349)
Change in plan assets:
Fair value of plan assets at beginning of year	815	772
Actual return on plan assets	(14)	24
Employer contributions	37	36
Employee/retiree contributions	8	7
Amendments and settlements	(13)	(13)
Benefits and other expenses paid	(50)	(47)
Foreign exchange rate impact and other	(4)	36
Fair value of plan assets at end of year	779	815
Funded status	(524)	(534)
Postretirement Benefits
Change in pension benefit obligation:
Benefit obligation at beginning of year	(98)	(101)
Service cost	0	0
Interest cost	(4)	(5)
Employee/retiree contributions	(2)	(1)
Benefits and other expenses paid	12	12
Actuarial gain (loss)	0	(3)
Amendments, settlements and curtailments	0	0
Foreign exchange rate impact and other	0	0
Benefit obligation at end of year	(92)	(98)
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	11	11
Employee/retiree contributions	1	1
Amendments and settlements	0	0
Benefits and other expenses paid	(12)	(12)
Foreign exchange rate impact and other	0	0
Fair value of plan assets at end of year	0	0
Funded status	$ (92)	$ (98)