Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFITS - Estimated Future Benefit Payments (Details)

v3.20.4
PENSION AND OTHER POSTRETIREMENT BENEFITS - Estimated Future Benefit Payments (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Pension Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
2021 $ 486
2022 462
2023 480
2024 455
2025 433
2026-2030 1,983
Other Postretirement Benefits Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
2021 191
2022 185
2023 180
2024 178
2025 176
2026-2030 $ 884