Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Employee Benefit Plans - Pretax Amounts Recognized in OCI (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax [Abstract]    
Current year actuarial loss (gain) $ 906 $ (408)
Amortization of actuarial gain (loss) (92) (164)
Current year prior service cost (credit) 0 (1)
Amortization of prior service cost (5) (5)
Amounts recognized in OCI 809 (578)
Qualified Pension Plan    
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax [Abstract]    
Current year actuarial loss (gain) 648 29
Amortization of actuarial gain (loss) (139) (170)
Current year prior service cost (credit) 0 0
Amortization of prior service cost 0 0
Amounts recognized in OCI 509 (141)
Non-U.S. Pension Plans    
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax [Abstract]    
Current year actuarial loss (gain) 100 (211)
Amortization of actuarial gain (loss) (6) (6)
Current year prior service cost (credit) 0 (1)
Amortization of prior service cost (1) (1)
Amounts recognized in OCI 93 (219)
Nonqualified and Other Pension Plans    
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax [Abstract]    
Current year actuarial loss (gain) 133 (86)
Amortization of actuarial gain (loss) (28) (34)
Current year prior service cost (credit) 0 0
Amortization of prior service cost 0 0
Amounts recognized in OCI 105 (120)
Postretirement Health and Life Plans    
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax [Abstract]    
Current year actuarial loss (gain) 25 (140)
Amortization of actuarial gain (loss) 81 46
Current year prior service cost (credit) 0 0
Amortization of prior service cost (4) (4)
Amounts recognized in OCI $ 102 $ (98)