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v3.21.2

Pensions and Other Postretirement 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 and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Non-service cost components of net periodic pension and OPEB income | $ 485 | $ 336 | $ 968 | $ 674
Global OPEB Plans |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Service cost | 5 | 4 | 9 | 9
Interest cost | 31 | 44 | 62 | 87
Expected return on plan assets | 0 | 0 | 0 | 0
Amortization of prior service cost (credit) | (1) | (2) | (3) | (4)
Amortization of net actuarial losses | 23 | 18 | 48 | 37
Net periodic pension and OPEB (income) expense | 58 | 64 | 116 | 129
U.S. | Pension Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Service cost | 66 | 63 | 131 | 125
Interest cost | 268 | 429 | 537 | 858
Expected return on plan assets | (794) | (817) | (1,589) | (1,633)
Amortization of prior service cost (credit) | (1) | (1) | (2) | (2)
Amortization of net actuarial losses | 6 | 4 | 13 | 8
Net periodic pension and OPEB (income) expense | (455) | (322) | (910) | (644)
Non-U.S. | Pension Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Service cost | 32 | 37 | 70 | 66
Interest cost | 61 | 88 | 120 | 179
Expected return on plan assets | (158) | (163) | (310) | (333)
Amortization of prior service cost (credit) | 2 | 1 | 3 | 3
Amortization of net actuarial losses | 54 | 40 | 108 | 82
Net periodic pension and OPEB (income) expense | $ (9) | $ 3 | $ (9) | $ (3)

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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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