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Pension and Other Postretirement Benefits - Pension Plan Assets by Category and FV (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
U.S. Plans
Benefit plans
Fair value of plan assets	$ 315	$ 325	$ 317
U.S. Plans | U.S.
Benefit plans
Fair value of plan assets	14	24
U.S. Plans | International
Benefit plans
Fair value of plan assets	7	16
U.S. Plans | Long bond
Benefit plans
Fair value of plan assets	$ 125	$ 133
Fixed income securities maturity (minimum)	10 years	10 years
U.S. Plans | Government bond
Benefit plans
Fair value of plan assets	$ 100	$ 89
U.S. Plans | Other
Benefit plans
Fair value of plan assets	$ 63	57
Redemption notification period	95 days
U.S. Plans | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	$ 6	6
U.S. Plans | NAV
Benefit plans
Fair value of plan assets	63	57
U.S. Plans | NAV | U.S.
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | NAV | International
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | NAV | Long bond
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | NAV | Government bond
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | NAV | Other
Benefit plans
Fair value of plan assets	63	57
U.S. Plans | NAV | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | U.S.
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | International
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | Long bond
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | Government bond
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | Other
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 1 | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 2
Benefit plans
Fair value of plan assets	252	268
U.S. Plans | Level 2 | U.S.
Benefit plans
Fair value of plan assets	14	24
U.S. Plans | Level 2 | International
Benefit plans
Fair value of plan assets	7	16
U.S. Plans | Level 2 | Long bond
Benefit plans
Fair value of plan assets	125	133
U.S. Plans | Level 2 | Government bond
Benefit plans
Fair value of plan assets	100	89
U.S. Plans | Level 2 | Other
Benefit plans
Fair value of plan assets	0	0
U.S. Plans | Level 2 | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	6	6
Non-U.S. Plans
Benefit plans
Fair value of plan assets	174	200	$ 189
Non-U.S. Plans | U.S.
Benefit plans
Fair value of plan assets	10	10
Non-U.S. Plans | International
Benefit plans
Fair value of plan assets	5	6
Non-U.S. Plans | Government bond
Benefit plans
Fair value of plan assets	73	78
Non-U.S. Plans | Corporate bond
Benefit plans
Fair value of plan assets	74	79
Non-U.S. Plans | Other
Benefit plans
Fair value of plan assets	10	25
Non-U.S. Plans | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	2	2
Non-U.S. Plans | NAV
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | U.S.
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | International
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | Government bond
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | Corporate bond
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | Other
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | NAV | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1
Benefit plans
Fair value of plan assets	2	2
Non-U.S. Plans | Level 1 | U.S.
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1 | International
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1 | Government bond
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1 | Corporate bond
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1 | Other
Benefit plans
Fair value of plan assets	0	0
Non-U.S. Plans | Level 1 | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	2	2
Non-U.S. Plans | Level 2
Benefit plans
Fair value of plan assets	172	198
Non-U.S. Plans | Level 2 | U.S.
Benefit plans
Fair value of plan assets	10	10
Non-U.S. Plans | Level 2 | International
Benefit plans
Fair value of plan assets	5	6
Non-U.S. Plans | Level 2 | Government bond
Benefit plans
Fair value of plan assets	73	78
Non-U.S. Plans | Level 2 | Corporate bond
Benefit plans
Fair value of plan assets	74	79
Non-U.S. Plans | Level 2 | Other
Benefit plans
Fair value of plan assets	10	25
Non-U.S. Plans | Level 2 | Cash & Short-term Investments
Benefit plans
Fair value of plan assets	$ 0	$ 0

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Redemption notification period of plan assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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+ References

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