XML 88 R64.htm IDEA: XBRL DOCUMENT v3.24.2
Employee Benefits - Costs by Plans (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Pension          
Defined Benefit Plan Disclosure [Line Items]          
Service cost $ 45   $ 52 $ 93 $ 105
Amortization of prior service cost (credit) 28   28 56 56
Expected return on plan assets (140)   (253) (348) (506)
Interest cost 112   188 269 376
Remeasurement loss, net 136 $ (73) 0 63 0
Other components 136   (37) 40 (74)
Total 181   15 133 31
Pension | Cost of services          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 39   45 80 91
Pension | Selling, general and administrative expense          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 6   7 13 14
Health Care and Life          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 13   14 26 27
Amortization of prior service cost (credit) (32)   (104) (64) (209)
Expected return on plan assets (7)   (8) (14) (15)
Interest cost 136   136 271 272
Remeasurement loss, net 0   0 0 0
Other components 97   24 193 48
Total 110   38 219 75
Health Care and Life | Cost of services          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 11   12 22 23
Health Care and Life | Selling, general and administrative expense          
Defined Benefit Plan Disclosure [Line Items]          
Service cost $ 2   $ 2 $ 4 $ 4