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v3.21.2

Post-Employment Benefits - (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Defined Benefit Plans |  |  |  |
Defined benefit plan net periodic benefit cost |  |  |  |
Service cost - benefits earned during the period | $ 96 | $ 81 | $ 196 | $ 166
Interest cost on projected benefit obligations | 62 | 74 | 124 | 149
Expected return on plan assets | (211) | (191) | (422) | (383)
Net amortization of: |  |  |  |
Actuarial loss, net | 78 | 64 | 159 | 127
Prior service cost (credit) | 1 | 1 | 1 | 1
Net cost - continuing operations | 26 | 29 | 58 | 60
Post-employment Obligations and Other Long-term Liabilities: |  |  |  |
Company contributions |  |  | 80 | 335
Medical and Dental Plans |  |  |  |
Defined benefit plan net periodic benefit cost |  |  |  |
Service cost - benefits earned during the period | 14 | 11 | 28 | 23
Interest cost on projected benefit obligations | 9 | 9 | 17 | 21
Expected return on plan assets | (7) | (7) | (14) | (14)
Net amortization of: |  |  |  |
Actuarial loss, net | 7 | 2 | 14 | 10
Prior service cost (credit) | (7) | (7) | (14) | (14)
Net cost - continuing operations | $ 16 | $ 8 | 31 | 26
Post-employment Obligations and Other Long-term Liabilities: |  |  |  |
Company contributions |  |  | $ 0 | $ 11

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