Annual report pursuant to Section 13 and 15(d)

Postretirement Health Care and Life Insurance Benefits (Estimated Postretirement Benefit Payments In Future Years) (Details)

v3.19.1
Postretirement Health Care and Life Insurance Benefits (Estimated Postretirement Benefit Payments In Future Years) (Details) - Other Postretirement Benefits Plan [Member]
$ in Millions
Feb. 02, 2019
USD ($)
Expected Benefit  
2019 $ 15
2020 14
2021 13
2022 13
2023 12
2024-2028 47
Expected Federal Subsidy  
2019 0
2020 0
2021 0
2022 0
2023 0
2024-2028 $ 1