v3.6.0.2
Pension And Other Postretirement Benefits (Expected Contribution Pension Benefits And Other Postretirement Benefits) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Pension Benefits - U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Contributions expected in 2017 $ 560
Benefits payments expected in 2017 1,817
Benefits payments expected in 2018 1,582
Benefits payments expected in 2019 1,484
Benefits payments expected in 2020 1,441
Benefits payments expected in 2021 1,426
Benefits payments expected in 2022-2026 6,910
Pension Benefits - Non-U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Contributions expected in 2017 540
Benefits payments expected in 2017 1,090
Benefits payments expected in 2018 1,086
Benefits payments expected in 2019 1,123
Benefits payments expected in 2020 1,131
Benefits payments expected in 2021 1,125
Benefits payments expected in 2022-2026 5,827
Gross Other Post Retirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benefits payments expected in 2017 459
Benefits payments expected in 2018 468
Benefits payments expected in 2019 474
Benefits payments expected in 2020 478
Benefits payments expected in 2021 480
Benefits payments expected in 2022-2026 2,381
Other Postretirement Benefits Medicare Subsidy Receipt [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benefits payments expected in 2017 24
Benefits payments expected in 2018 25
Benefits payments expected in 2019 26
Benefits payments expected in 2020 28
Benefits payments expected in 2021 29
Benefit payments expected in 2022-2026 $ 168