Benefit Plans (Level 3 Roll Forward) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Foreign Plan [Member]
Change in plan assets:
Fair value of plan assets, beginning period	$ 114	$ 106
Effect of foreign currency exchange rate changes	10	9
Fair value of plan assets, ending period	127	114
Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	114
Fair value of plan assets, ending period	127	114
UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	911	1,218
Effect of foreign currency exchange rate changes	0	0
Fair value of plan assets, ending period	883	911
Mutual funds | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	105
Fair value of plan assets, ending period	113	105
Mutual funds | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	704
Fair value of plan assets, ending period	685	704
Cash and Cash Equivalents [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	5
Fair value of plan assets, ending period	5	5
Private equity | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	2	1
Real estate | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	1	1
Other assets | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	4
Fair value of plan assets, ending period	6	4
Equity Funds [Member] | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	3
Fair value of plan assets, ending period	5	3
Equity Funds [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	202
Fair value of plan assets, ending period	193	202
Level 3 | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	3
Fair value of plan assets, ending period	5	3
Level 3 | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 3 | Mutual funds | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 3 | Cash and Cash Equivalents [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 3 | Private equity | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	2	1
Level 3 | Real estate | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	1	1
Level 3 | Other assets | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	2	1
Level 3 | Equity Funds [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 1 | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	36
Fair value of plan assets, ending period	41	36
Level 1 | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	5
Fair value of plan assets, ending period	5	5
Level 1 | Mutual funds | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	35
Fair value of plan assets, ending period	40	35
Level 1 | Mutual funds | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 1 | Cash and Cash Equivalents [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	5
Fair value of plan assets, ending period	5	5
Level 1 | Private equity | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 1 | Real estate | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 1 | Other assets | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	1
Fair value of plan assets, ending period	1	1
Level 1 | Equity Funds [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 2 | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	75
Fair value of plan assets, ending period	81	75
Level 2 | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	906
Fair value of plan assets, ending period	878	906
Level 2 | Mutual funds | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	70
Fair value of plan assets, ending period	73	70
Level 2 | Mutual funds | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	704
Fair value of plan assets, ending period	685	704
Level 2 | Cash and Cash Equivalents [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 2 | Private equity | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 2 | Real estate | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	0
Fair value of plan assets, ending period	0	0
Level 2 | Other assets | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	2
Fair value of plan assets, ending period	3	2
Level 2 | Equity Funds [Member] | Foreign Plan [Member] | Fair Value, Recurring
Change in plan assets:
Fair value of plan assets, beginning period	3
Fair value of plan assets, ending period	5	3
Level 2 | Equity Funds [Member] | UNITED STATES
Change in plan assets:
Fair value of plan assets, beginning period	202
Fair value of plan assets, ending period	$ 193	$ 202