Pension and Other Postretirement Benefits - Pension Plan Assets by Category and FV (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other
Plan assets
Redemption notification period	95 days
Pension Plan | U.S. Plans
Plan assets
Fair value of plan assets	$ 325	$ 317	$ 420
Pension Plan | U.S. Plans | Equity index - U.S.
Plan assets
Fair value of plan assets	24	22
Pension Plan | U.S. Plans | Equity index - International
Plan assets
Fair value of plan assets	16	14
Pension Plan | U.S. Plans | Fixed income index- Long bond
Plan assets
Fair value of plan assets	133	127
Pension Plan | U.S. Plans | Fixed income index - Government bond
Plan assets
Fair value of plan assets	$ 89	$ 89
Pension Plan | U.S. Plans | Fixed income index - Government bond | Minimum
Plan assets
Fixed income securities maturity (in years)	10 years	10 years
Pension Plan | U.S. Plans | Other
Plan assets
Fair value of plan assets	$ 57	$ 59
Pension Plan | U.S. Plans | Cash & Short-term Investments
Plan assets
Fair value of plan assets	6	6
Pension Plan | U.S. Plans | NAV
Plan assets
Fair value of plan assets	57	59
Pension Plan | U.S. Plans | NAV | Equity index - U.S.
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | NAV | Equity index - International
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | NAV | Fixed income index- Long bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | NAV | Fixed income index - Government bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | NAV | Other
Plan assets
Fair value of plan assets	57	59
Pension Plan | U.S. Plans | NAV | Cash & Short-term Investments
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Equity index - U.S.
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Equity index - International
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Fixed income index- Long bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Fixed income index - Government bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Other
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 1 | Cash & Short-term Investments
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 2
Plan assets
Fair value of plan assets	268	258
Pension Plan | U.S. Plans | Level 2 | Equity index - U.S.
Plan assets
Fair value of plan assets	24	22
Pension Plan | U.S. Plans | Level 2 | Equity index - International
Plan assets
Fair value of plan assets	16	14
Pension Plan | U.S. Plans | Level 2 | Fixed income index- Long bond
Plan assets
Fair value of plan assets	133	127
Pension Plan | U.S. Plans | Level 2 | Fixed income index - Government bond
Plan assets
Fair value of plan assets	89	89
Pension Plan | U.S. Plans | Level 2 | Other
Plan assets
Fair value of plan assets	0	0
Pension Plan | U.S. Plans | Level 2 | Cash & Short-term Investments
Plan assets
Fair value of plan assets	6	6
Pension Plan | Non-U.S. Plans
Plan assets
Fair value of plan assets	200	189	$ 244
Pension Plan | Non-U.S. Plans | Equity index - U.S.
Plan assets
Fair value of plan assets	10	9
Pension Plan | Non-U.S. Plans | Equity index - International
Plan assets
Fair value of plan assets	6	6
Pension Plan | Non-U.S. Plans | Fixed income index - Government bond
Plan assets
Fair value of plan assets	78	99
Pension Plan | Non-U.S. Plans | Fixed income index - Corporate bond
Plan assets
Fair value of plan assets	79	46
Pension Plan | Non-U.S. Plans | Other
Plan assets
Fair value of plan assets	25	22
Pension Plan | Non-U.S. Plans | Cash & Short-term Investments
Plan assets
Fair value of plan assets	2	7
Pension Plan | Non-U.S. Plans | NAV
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Equity index - U.S.
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Equity index - International
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Fixed income index - Government bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Fixed income index - Corporate bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Other
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | NAV | Cash & Short-term Investments
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1
Plan assets
Fair value of plan assets	2	2
Pension Plan | Non-U.S. Plans | Level 1 | Equity index - U.S.
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1 | Equity index - International
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1 | Fixed income index - Government bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1 | Fixed income index - Corporate bond
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1 | Other
Plan assets
Fair value of plan assets	0	0
Pension Plan | Non-U.S. Plans | Level 1 | Cash & Short-term Investments
Plan assets
Fair value of plan assets	2	2
Pension Plan | Non-U.S. Plans | Level 2
Plan assets
Fair value of plan assets	198	187
Pension Plan | Non-U.S. Plans | Level 2 | Equity index - U.S.
Plan assets
Fair value of plan assets	10	9
Pension Plan | Non-U.S. Plans | Level 2 | Equity index - International
Plan assets
Fair value of plan assets	6	6
Pension Plan | Non-U.S. Plans | Level 2 | Fixed income index - Government bond
Plan assets
Fair value of plan assets	78	99
Pension Plan | Non-U.S. Plans | Level 2 | Fixed income index - Corporate bond
Plan assets
Fair value of plan assets	79	46
Pension Plan | Non-U.S. Plans | Level 2 | Other
Plan assets
Fair value of plan assets	25	22
Pension Plan | Non-U.S. Plans | Level 2 | Cash & Short-term Investments
Plan assets
Fair value of plan assets	$ 0	$ 5