Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Pretax Amounts Recognized in OCI (Details)

v3.22.0.1
Employee Benefit Plans - Pretax Amounts Recognized in OCI (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax [Abstract]    
Current year actuarial loss (gain) $ (468) $ 374
Amortization of actuarial gain (loss) and prior service cost (295) (262)
Current year prior service cost (credit) 0 3
Amounts recognized in OCI (763) 115
U.S. | Postretirement Health and Life Plans    
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax [Abstract]    
Current year actuarial loss (gain) (41) 47
Amortization of actuarial gain (loss) and prior service cost (20) (27)
Current year prior service cost (credit) 0 0
Amounts recognized in OCI (61) 20
Non-U.S. | Pension Plan    
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax [Abstract]    
Current year actuarial loss (gain) (154) 79
Amortization of actuarial gain (loss) and prior service cost (19) (12)
Current year prior service cost (credit) 0 3
Amounts recognized in OCI (173) 70
Qualified | U.S. | Pension Plan    
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax [Abstract]    
Current year actuarial loss (gain) (294) 219
Amortization of actuarial gain (loss) and prior service cost (193) (173)
Current year prior service cost (credit) 0 0
Amounts recognized in OCI (487) 46
Nonqualified | U.S. | Other Pension Plan    
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax [Abstract]    
Current year actuarial loss (gain) 21 29
Amortization of actuarial gain (loss) and prior service cost (63) (50)
Current year prior service cost (credit) 0 0
Amounts recognized in OCI $ (42) $ (21)