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Postretirement and Other Benefits - Target Allocations (Details) - Pension Benefits | Dec. 31, 2023 | Dec. 31, 2022
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United States |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 100.00% | 100.00%
United States | Cash and cash equivalents |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 1.00% | 1.00%
United States | Domestic large cap |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 9.00% | 10.00%
United States | Domestic small cap |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 3.00% | 3.00%
United States | International |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 16.00% | 14.00%
United States | Fixed income securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 71.00% | 72.00%
United States | Alternative investments |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 0.00% | 0.00%
Non-U.S. |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 100.00% | 100.00%
Non-U.S. | Cash and cash equivalents |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 4.00% | 8.00%
Non-U.S. | Domestic large cap |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 0.00% | 1.00%
Non-U.S. | Domestic small cap |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 0.00% | 0.00%
Non-U.S. | International |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 0.00% | 0.00%
Non-U.S. | Fixed income securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 96.00% | 90.00%
Non-U.S. | Alternative investments |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Actual allocations | 0.00% | 1.00%

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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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