Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Pretax Amounts Included in Accumulated OCI (Details)

v3.24.0.1
Employee Benefit Plans - Pretax Amounts Included in Accumulated OCI (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss (gain) $ 6,277 $ 5,696
Prior service cost (credits) 46 42
Amounts recognized in accumulated OCI 6,323 5,738
U.S. | Postretirement Health and Life Plans    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss (gain) (125) (187)
Prior service cost (credits) 0 (1)
Amounts recognized in accumulated OCI (125) (188)
Non-U.S. | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss (gain) 478 312
Prior service cost (credits) 46 43
Amounts recognized in accumulated OCI 524 355
Qualified | U.S. | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss (gain) 5,072 4,775
Prior service cost (credits) 0 0
Amounts recognized in accumulated OCI 5,072 4,775
Nonqualified | U.S. | Other Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss (gain) 852 796
Prior service cost (credits) 0 0
Amounts recognized in accumulated OCI $ 852 $ 796