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Quarterly report pursuant to Section 13 or 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Pension and Other Postretirement Benefits (Details)

v3.21.2
PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Pension and Other Postretirement Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jan. 04, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý Ìý Ìý
OPEB contributions Ìý $ 5 Ìý $ 5 Ìý
Pension Plan Ìý Ìý Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý Ìý Ìý
Service cost Ìý 14 $ 6 28 $ 11
Interest cost Ìý 26 15 52 23
Expected return on plan assets Ìý (90) (37) (180) (55)
Net actuarial loss Ìý 8 6 16 13
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total Ìý (42) (10) (84) (8)
Defined benefit pension contributions $ 118 7 Ìý 153 4
Other Postretirement Benefit Plans, Defined Benefit Ìý Ìý Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý Ìý Ìý
Service cost Ìý 12 1 25 2
Interest cost Ìý 19 5 37 7
Expected return on plan assets Ìý (10) (4) (20) (9)
Prior service credits Ìý 0 0 0 (1)
Net actuarial loss Ìý 1 0 2 1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total Ìý $ 22 2 $ 44 0
OPEB contributions Ìý Ìý $ 0 Ìý $ 0