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Employee Benefit and Retirement Plans - Schedule of Reconciliation of Benefit Obligations (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Accumulated benefit obligation | $ 2,000 | $ 2,100 |
United States |  |  |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 1,228 |  |
Fair value of plan assets at end of year | 1,161 | 1,228 |
International |  |  |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 580 |  |
Fair value of plan assets at end of year | 627 | 580 |
Pension Benefits | United States |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 1,449 | 1,348 |
Service cost | 0 | 1 | $ 1
Interest cost | 35 | 49 | 46
Actuarial loss | 133 | 151 |
Amendments | 0 | 0 |
Currency translation | 0 | 0 |
Benefits paid | (95) | (100) |
Acquisitions and dispositions, net | 2 | 0 |
Curtailments, settlements and other | (167) | 0 |
Benefit obligation at end of year | 1,357 | 1,449 | 1,348
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 1,228 | 1,105 |
Actual return on plan assets | 178 | 213 |
Contributions | 17 | 10 |
Currency translation | 0 | 0 |
Benefits paid | (95) | (100) |
Settlements and other | (167) | 0 |
Fair value of plan assets at end of year | 1,161 | 1,228 | 1,105
Funded status at end of year | (196) | (221) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 0 | 0 |
Accrued current benefit cost—other accrued liabilities | (11) | (15) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (185) | (206) |
Net amount recognized | $ (196) | $ (221) |
Discount rate | 2.16% | 3.06% |
Long-term rate of compensation increase | 3.00% | 3.00% |
Current health care cost trend rates | 0.00% | 0.00% |
Ultimate health care cost trend rates | 0.00% | 0.00% |
Pension Benefits | International |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | $ 626 | $ 581 |
Service cost | 4 | 6 | 6
Interest cost | 9 | 13 | 13
Actuarial loss | 29 | 45 |
Amendments | 1 | 1 |
Currency translation | 29 | 15 |
Benefits paid | (21) | (22) |
Acquisitions and dispositions, net | 0 | 0 |
Curtailments, settlements and other | (9) | (13) |
Benefit obligation at end of year | 668 | 626 | 581
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 580 | 532 |
Actual return on plan assets | 47 | 51 |
Contributions | 8 | 13 |
Currency translation | 22 | 19 |
Benefits paid | (21) | (22) |
Settlements and other | (9) | (13) |
Fair value of plan assets at end of year | 627 | 580 | 532
Funded status at end of year | (41) | (46) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 104 | 89 |
Accrued current benefit cost—other accrued liabilities | (5) | (4) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (140) | (131) |
Net amount recognized | $ (41) | $ (46) |
Discount rate | 1.22% | 1.79% |
Long-term rate of compensation increase | 2.18% | 2.31% |
Current health care cost trend rates | 0.00% | 0.00% |
Ultimate health care cost trend rates | 0.00% | 0.00% |
Postretirement Benefits |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | $ 52 | $ 53 |
Service cost | 0 | 0 |
Interest cost | 1 | 2 | 2
Actuarial loss | 2 | 2 |
Amendments | 0 | 0 |
Currency translation | 0 | 0 |
Benefits paid | (4) | (5) |
Acquisitions and dispositions, net | 0 | 0 |
Curtailments, settlements and other | 0 | 0 |
Benefit obligation at end of year | 51 | 52 | 53
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0 | 0 |
Actual return on plan assets | 0 | 0 |
Contributions | 4 | 0 |
Currency translation | 0 | 0 |
Benefits paid | (4) | 0 |
Settlements and other | 0 | 0 |
Fair value of plan assets at end of year | 0 | 0 | $ 0
Funded status at end of year | (51) | (52) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 0 | 0 |
Accrued current benefit cost—other accrued liabilities | (5) | (6) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (46) | (46) |
Net amount recognized | $ (51) | $ (52) |
Discount rate | 1.80% | 2.80% |
Long-term rate of compensation increase | 0.00% | 0.00% |
Current health care cost trend rates | 6.48% | 6.74% |
Ultimate health care cost trend rates | 4.50% | 4.50% |

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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