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Employee Benefit Plans - Plan Assets (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | $ 138,000,000 | $ 177,000,000 | $ 204,000,000
U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 9,137,000,000 | 7,942,000,000 |
U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 2,831,000,000 | 2,370,000,000 |
U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,067,000,000 | 851,000,000 |
U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 57,000,000 | 54,000,000 |
U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 5,182,000,000 | 4,667,000,000 |
Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 3,398,000,000 | 3,286,000,000 |
Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 505,000,000 | 515,000,000 |
Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 625,000,000 | 483,000,000 |
Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 81,000,000 | 123,000,000 |
Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 2,187,000,000 | 2,165,000,000 |
U.S. | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,691,000,000 | 1,358,000,000 |
U.S. | U.S. | Company's Own Stock |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
U.S. | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,689,000,000 | 1,358,000,000 |
U.S. | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 0 |
U.S. | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 0 |
U.S. | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
U.S. | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 188,000,000 | 164,000,000 |
U.S. | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 188,000,000 | 164,000,000 |
U.S. | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
U.S. | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
U.S. | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 0 | 0
International | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,128,000,000 | 946,000,000 |
International | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,128,000,000 | 946,000,000 |
International | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 124,000,000 | 120,000,000 |
International | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 124,000,000 | 120,000,000 |
International | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
International | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,269,000,000 | 1,695,000,000 |
Collective Trusts/Mutual Funds | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 4,000,000 | 4,000,000 |
Collective Trusts/Mutual Funds | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,265,000,000 | 1,691,000,000 |
Collective Trusts/Mutual Funds | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 95,000,000 | 87,000,000 |
Collective Trusts/Mutual Funds | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 6,000,000 | 6,000,000 |
Collective Trusts/Mutual Funds | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 89,000,000 | 81,000,000 |
Government | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 82,000,000 | 110,000,000 |
Government | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Government | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 82,000,000 | 110,000,000 |
Government | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Government | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Government | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 172,000,000 | 185,000,000 |
Government | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 101,000,000 | 127,000,000 |
Government | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 71,000,000 | 58,000,000 |
Government | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Government | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Corporate | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 | 1,000,000
Corporate | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 964,000,000 | 680,000,000 |
Corporate | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Corporate | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 964,000,000 | 680,000,000 |
Corporate | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Corporate | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Corporate | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 431,000,000 | 343,000,000 |
Corporate | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 4,000,000 | 15,000,000 |
Corporate | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 427,000,000 | 328,000,000 |
Corporate | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Corporate | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 5,000,000 | 45,000,000 |
Bank Loans | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 5,000,000 | 45,000,000 |
Bank Loans | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Bank Loans | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 1,000,000 |
Mortgage/Asset Backed | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 1,000,000 |
Mortgage/Asset Backed | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 5,000,000 | 4,000,000 |
Mortgage/Asset Backed | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 5,000,000 | 4,000,000 |
Mortgage/Asset Backed | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mortgage/Asset Backed | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 2,293,000,000 | 1,616,000,000 |
Collective Trusts/Mutual Funds | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 2,293,000,000 | 1,616,000,000 |
Collective Trusts/Mutual Funds | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,819,000,000 | 1,750,000,000 |
Collective Trusts/Mutual Funds | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Collective Trusts/Mutual Funds | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,819,000,000 | 1,750,000,000 |
Mixed Funds | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 85,000,000 | 87,000,000 |
Mixed Funds | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 8,000,000 | 14,000,000 |
Mixed Funds | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 77,000,000 | 73,000,000 |
Mixed Funds | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Mixed Funds | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Real Estate | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 38,000,000 | 42,000,000
Real Estate | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,087,000,000 | 1,184,000,000 |
Real Estate | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Real Estate | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Real Estate | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Real Estate | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,087,000,000 | 1,184,000,000 |
Real Estate | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 147,000,000 | 198,000,000 |
Real Estate | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Real Estate | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 24,000,000 | 0 |
Real Estate | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 38,000,000 |
Real Estate | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 123,000,000 | 160,000,000 |
Alternative Investments | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 9,000,000 | 0 |
Alternative Investments | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 9,000,000 | 0 |
Alternative Investments | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Alternative Investments | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Cash and Cash Equivalents | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 548,000,000 | 200,000,000 |
Cash and Cash Equivalents | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 12,000,000 | 25,000,000 |
Cash and Cash Equivalents | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Cash and Cash Equivalents | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Cash and Cash Equivalents | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 536,000,000 | 175,000,000 |
Cash and Cash Equivalents | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 81,000,000 | 80,000,000 |
Cash and Cash Equivalents | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 74,000,000 | 69,000,000 |
Cash and Cash Equivalents | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 2,000,000 |
Cash and Cash Equivalents | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Cash and Cash Equivalents | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 6,000,000 | 9,000,000 |
Other | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 137,000,000 | 139,000,000 | $ 161,000,000
Other | U.S. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 69,000,000 | 107,000,000 |
Other | U.S. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | (2,000,000) | 37,000,000 |
Other | U.S. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 14,000,000 | 15,000,000 |
Other | U.S. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 56,000,000 | 54,000,000 |
Other | U.S. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 1,000,000 | 1,000,000 |
Other | Int’l. |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 242,000,000 | 268,000,000 |
Other | Int’l. | Level 1 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 0 | 0 |
Other | Int’l. | Level 2 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 11,000,000 | 18,000,000 |
Other | Int’l. | Level 3 |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | 81,000,000 | 85,000,000 |
Other | Int’l. | NAV |  |  |
Fair Value Measurements of Company's Pension Plans |  |  |
Fair value of plan assets | $ 150,000,000 | $ 165,000,000 |

X
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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