XML 85 R71.htm IDEA: XBRL DOCUMENT v3.25.3
Benefit Plans - Fair Value Measurements of Plan Assets (Details) - Pension Plans - USD ($)
$ in Millions
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,466 $ 2,557 $ 2,129
United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,572 1,676  
United States | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 422 518  
United States | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 179 159  
United States | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 52 31  
United States | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 103 53  
United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 520 582  
United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 170 172  
United States | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 126 162  
International plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 895 880  
International plans | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 105 114  
International plans | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 9  
International plans | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 247 223  
International plans | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 54 52  
International plans | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 177 196  
International plans | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 13  
International plans | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 131 117  
International plans | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 50 44  
International plans | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 111 113  
Net Asset Value | United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 158 146  
Net Asset Value | United States | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Net Asset Value | United States | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Net Asset Value | United States | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Net Asset Value | United States | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 47 0  
Net Asset Value | United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 61 71  
Net Asset Value | United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Net Asset Value | United States | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 50 75  
Level 1 | United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,192 1,240  
Level 1 | United States | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 273 296  
Level 1 | United States | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 173 149  
Level 1 | United States | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 1 | United States | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 41 25  
Level 1 | United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 460 512  
Level 1 | United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 170 172  
Level 1 | United States | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 75 87  
Level 1 | International plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 584 600  
Level 1 | International plans | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 90 92  
Level 1 | International plans | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 7  
Level 1 | International plans | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 181 188  
Level 1 | International plans | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 51 44  
Level 1 | International plans | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 151 166  
Level 1 | International plans | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 12 11  
Level 1 | International plans | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 92 92  
Level 1 | International plans | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1 1  
Level 1 | International plans | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 2 | United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 221 291  
Level 2 | United States | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 149 222  
Level 2 | United States | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 10  
Level 2 | United States | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 52 31  
Level 2 | United States | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 28  
Level 2 | United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 2 | United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 2 | United States | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 2 | International plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 124 85  
Level 2 | International plans | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 9  
Level 2 | International plans | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 2  
Level 2 | International plans | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 59 28  
Level 2 | International plans | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3 9  
Level 2 | International plans | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1 0  
Level 2 | International plans | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 2 | International plans | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 3  
Level 2 | International plans | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 40 34  
Level 2 | International plans | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | United States | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | International plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 187 195  
Level 3 | International plans | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 8 13  
Level 3 | International plans | Government and agency-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | International plans | Government and agency-Foreign      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 7  
Level 3 | International plans | Other fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
Level 3 | International plans | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 25 30  
Level 3 | International plans | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2 2  
Level 3 | International plans | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 25 22  
Level 3 | International plans | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 9 9  
Level 3 | International plans | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 111 $ 113