Pension and Other Postretirement Benefit Plans - Fair Values of Pension Plan Assets (Details) - Pension Benefits - USD ($)
$ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
| Level 3 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
$ 737
|
$ 700
|
|
| United States |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
10,730
|
9,717
|
$ 9,804
|
| United States | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
342
|
164
|
|
| United States | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
3,474
|
2,555
|
|
| United States | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
905
|
1,265
|
|
| United States | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
298
|
174
|
|
| United States | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2,109
|
2,171
|
|
| United States | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2,206
|
2,101
|
|
| United States | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
1,397
|
1,293
|
|
| United States | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
18
|
21
|
|
| United States | Derivatives |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
(21)
|
(29)
|
|
| United States | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2
|
2
|
|
| United States | Level 1 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2,484
|
2,355
|
|
| United States | Level 1 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
200
|
43
|
|
| United States | Level 1 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
196
|
170
|
|
| United States | Level 1 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 1 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 1 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2,109
|
2,171
|
|
| United States | Level 1 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 1 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 1 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 1 | Derivatives |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
(21)
|
(29)
|
|
| United States | Level 1 | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
3,621
|
3,415
|
|
| United States | Level 2 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2,206
|
2,101
|
|
| United States | Level 2 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
1,397
|
1,293
|
|
| United States | Level 2 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
18
|
21
|
|
| United States | Level 2 | Derivatives |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 2 | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2
|
2
|
3
|
| United States | Level 3 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Derivatives |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | Level 3 | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
2
|
2
|
3
|
| United States | Level 3 | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
0
|
| United States | NAV |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
4,623
|
3,945
|
|
| United States | NAV | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
142
|
121
|
|
| United States | NAV | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
3,278
|
2,385
|
|
| United States | NAV | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
905
|
1,265
|
|
| United States | NAV | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
298
|
174
|
|
| United States | NAV | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | NAV | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | NAV | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | NAV | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | NAV | Derivatives |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| United States | NAV | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
10,906
|
9,647
|
9,562
|
| International | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
106
|
123
|
|
| International | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
4,974
|
4,232
|
|
| International | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
161
|
145
|
|
| International | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
17
|
12
|
|
| International | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
3,786
|
3,385
|
|
| International | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
191
|
180
|
|
| International | Other fixed income obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
36
|
19
|
|
| International | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
289
|
287
|
|
| International | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
413
|
368
|
|
| International | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
147
|
141
|
|
| International | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
51
|
54
|
|
| International | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
735
|
701
|
|
| International | Level 1 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
1,640
|
1,345
|
|
| International | Level 1 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
90
|
112
|
|
| International | Level 1 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
815
|
599
|
|
| International | Level 1 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
71
|
54
|
|
| International | Level 1 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 1 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
323
|
262
|
|
| International | Level 1 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
25
|
23
|
|
| International | Level 1 | Other fixed income obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
27
|
8
|
|
| International | Level 1 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
289
|
287
|
|
| International | Level 1 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 1 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 1 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 1 | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 2 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
7,961
|
7,090
|
|
| International | Level 2 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
5
|
0
|
|
| International | Level 2 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
4,024
|
3,537
|
|
| International | Level 2 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 2 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 2 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
3,306
|
2,974
|
|
| International | Level 2 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
10
|
8
|
|
| International | Level 2 | Other fixed income obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
5
|
7
|
|
| International | Level 2 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 2 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
413
|
368
|
|
| International | Level 2 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
147
|
141
|
|
| International | Level 2 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
51
|
54
|
|
| International | Level 2 | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
1
|
|
| International | Level 3 |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
735
|
698
|
785
|
| International | Level 3 | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Other fixed income obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | Level 3 | Other |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
0
|
| International | Level 3 | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
735
|
698
|
$ 785
|
| International | NAV |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
570
|
514
|
|
| International | NAV | Cash and cash equivalents |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
11
|
11
|
|
| International | NAV | Developed markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
135
|
96
|
|
| International | NAV | Emerging markets equities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
90
|
91
|
|
| International | NAV | Real estate |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
17
|
12
|
|
| International | NAV | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
157
|
149
|
|
| International | NAV | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
156
|
149
|
|
| International | NAV | Other fixed income obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
4
|
4
|
|
| International | NAV | Developed markets |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | NAV | Government and agency obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | NAV | Corporate obligations |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | NAV | Mortgage and asset-backed securities |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
0
|
0
|
|
| International | NAV | Insurance contracts |
|
|
|
| Defined Benefit Plan Disclosure [Line Items] |
|
|
|
| Fair value of plan assets |
$ 0
|
$ 2
|
|