v3.25.4
Employee Benefit Plans - Plan Assets (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets $ 624,000,000 $ 152,000,000 $ 138,000,000
U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 11,787,000,000 9,537,000,000  
U.S. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 3,246,000,000 3,077,000,000  
U.S. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 2,884,000,000 1,198,000,000  
U.S. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 83,000,000 74,000,000  
U.S. | NAV      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 5,574,000,000 5,188,000,000  
Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 3,897,000,000 3,060,000,000  
Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 522,000,000 476,000,000  
Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 764,000,000 609,000,000  
Int’l. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 541,000,000 78,000,000  
Int’l. | NAV      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 2,070,000,000 1,897,000,000  
U.S. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0 1,000,000
U.S. | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 2,077,000,000 1,866,000,000  
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 2,077,000,000 1,866,000,000  
U.S. | U.S. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0  
U.S. | U.S. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 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 177,000,000 180,000,000  
U.S. | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 177,000,000 180,000,000  
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 29,000,000 21,000,000 0
International | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 1,168,000,000 1,208,000,000  
International | U.S. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 1,152,000,000 1,197,000,000  
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 16,000,000 11,000,000  
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 122,000,000 107,000,000  
International | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 109,000,000 97,000,000  
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 13,000,000 10,000,000  
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 833,000,000 1,191,000,000  
Collective Trusts/Mutual Funds | U.S. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 6,000,000 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 827,000,000 1,187,000,000  
Collective Trusts/Mutual Funds | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 100,000,000 98,000,000  
Collective Trusts/Mutual Funds | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 5,000,000 6,000,000  
Collective Trusts/Mutual Funds | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 18,000,000 13,000,000  
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 77,000,000 79,000,000  
Government | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 672,000,000 132,000,000  
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 672,000,000 132,000,000  
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 200,000,000 167,000,000  
Government | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 132,000,000 99,000,000  
Government | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 68,000,000 68,000,000  
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 | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 2,040,000,000 1,042,000,000  
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 2,040,000,000 1,042,000,000  
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 532,000,000 403,000,000  
Corporate | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 1,000,000 2,000,000  
Corporate | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 531,000,000 401,000,000  
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 22,000,000 10,000,000  
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 22,000,000 10,000,000  
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 129,000,000 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 129,000,000 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 2,523,000,000 2,342,000,000  
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 2,523,000,000 2,342,000,000  
Collective Trusts/Mutual Funds | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 1,753,000,000 1,594,000,000  
Collective Trusts/Mutual Funds | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 3,000,000 2,000,000  
Collective Trusts/Mutual Funds | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 11,000,000 10,000,000  
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 1,739,000,000 1,582,000,000  
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 89,000,000 76,000,000  
Mixed Funds | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0  
Mixed Funds | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 89,000,000 76,000,000  
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 0 0
Real Estate | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 1,594,000,000 1,383,000,000  
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 1,594,000,000 1,383,000,000  
Real Estate | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 118,000,000 105,000,000  
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 22,000,000 16,000,000  
Real Estate | Int’l. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0  
Real Estate | Int’l. | NAV      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 96,000,000 89,000,000  
Alternative Investments | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 423,000,000 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 423,000,000 0  
Alternative Investments | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 14,000,000 9,000,000  
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 8,000,000 9,000,000  
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 6,000,000 0  
Cash and Cash Equivalents | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 273,000,000 289,000,000  
Cash and Cash Equivalents | U.S. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 66,000,000 13,000,000  
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 207,000,000 276,000,000  
Cash and Cash Equivalents | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 93,000,000 108,000,000  
Cash and Cash Equivalents | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 90,000,000 90,000,000  
Cash and Cash Equivalents | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0  
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 3,000,000 18,000,000  
Other | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 595,000,000 131,000,000 $ 137,000,000
Other | U.S.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 33,000,000 73,000,000  
Other | U.S. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets (55,000,000) (3,000,000)  
Other | U.S. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 21,000,000 13,000,000  
Other | U.S. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 67,000,000 63,000,000  
Other | U.S. | NAV      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 0 0  
Other | Int’l.      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 694,000,000 209,000,000  
Other | Int’l. | Level 1      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 5,000,000 0  
Other | Int’l. | Level 2      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 12,000,000 12,000,000  
Other | Int’l. | Level 3      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets 528,000,000 68,000,000  
Other | Int’l. | NAV      
Fair Value Measurements of Company's Pension Plans      
Fair value of plan assets $ 149,000,000 $ 129,000,000