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Retirement Plans and Other Retiree Benefits - Summary of Defined Benefit and Other Retiree Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Amounts Recognized in Balance Sheet |  |  |
Current liabilities | $ (87) | $ (89) |
Pension Plans |  |  |
Weighted-Average Assumptions Used to Determine Benefit Obligations |  |  |
Expected long-term rate of return on plan assets | 5.70% |  |
Other Retiree Benefit Plans |  |  |
Change in Benefit Obligations |  |  |
Benefit obligations at beginning of year | $ 1,112 | 1,050 |
Service cost | 26 | 20 | $ 15
Interest cost | 35 | 37 | 41
Participants’ contributions | 0 | 0 |
Acquisitions/plan amendments | 0 | 0 |
Actuarial loss (gain) | (50) | 61 |
Foreign exchange impact | (8) | (9) |
Termination benefits | 0 | 0 |
Curtailments and settlements | 0 | 0 |
Benefit payments | (35) | (47) |
Other | 0 | 0 |
Benefit obligations at end of year | 1,080 | 1,112 | 1,050
Change in Plan Assets |  |  |
Fair value of plan assets at beginning of year | 3 | 37 |
Actual return on plan assets | 0 | 2 |
Company contributions | 32 | 11 |
Participants’ contributions | 0 | 0 |
Foreign exchange impact | 0 | 0 |
Settlements and acquisitions | 0 | 0 |
Benefit payments | (35) | (47) |
Other | 0 | 0 |
Fair value of plan assets at end of year | 0 | 3 | 37
Funded Status |  |  |
Benefit obligations at end of year | 1,080 | 1,112 | 1,050
Fair value of plan assets at end of year | 0 | 3 | 37
Net amount recognized | (1,080) | (1,109) |
Amounts Recognized in Balance Sheet |  |  |
Noncurrent assets | 0 | 0 |
Current liabilities | (47) | (45) |
Noncurrent liabilities | (1,033) | (1,064) |
Net amount recognized | (1,080) | (1,109) |
Amounts Recognized in Accumulated Other Comprehensive Income (Loss) |  |  |
Actuarial loss | 356 | 429 |
Transition/prior service cost | 0 | 0 |
Amounts recognized in accumulated other comprehensive income | 356 | 429 |
Accumulated benefit obligation | $ 0 | $ 0 |
Weighted-Average Assumptions Used to Determine Benefit Obligations |  |  |
Discount rate | 3.06% | 2.88% |
Expected long-term rate of return on plan assets |  | 5.70% |
Long-term rate of compensation increase | 3.50% | 3.50% |
ESOP growth rate | 6.00% | 10.00% |
Medical cost trend rate of increase | 6.00% | 6.00% |
Interest Crediting Rate | 0.00% | 0.00% |
United States | Pension Plans |  |  |
Change in Benefit Obligations |  |  |
Benefit obligations at beginning of year | $ 2,363 | $ 2,272 |
Service cost | 0 | 1 | 1
Interest cost | 61 | 74 | 90
Participants’ contributions | 0 | 0 |
Acquisitions/plan amendments | (2) | 0 |
Actuarial loss (gain) | (52) | 171 |
Foreign exchange impact | 0 | 0 |
Termination benefits | 0 | 3 |
Curtailments and settlements | (5) | (3) |
Benefit payments | (158) | (155) |
Other | 0 | 0 |
Benefit obligations at end of year | 2,207 | 2,363 | 2,272
Change in Plan Assets |  |  |
Fair value of plan assets at beginning of year | 1,921 | 1,806 |
Actual return on plan assets | 46 | 243 |
Company contributions | 28 | 30 |
Participants’ contributions | 0 | 0 |
Foreign exchange impact | 0 | 0 |
Settlements and acquisitions | (3) | (3) |
Benefit payments | (158) | (155) |
Other | 0 | 0 |
Fair value of plan assets at end of year | 1,834 | 1,921 | 1,806
Funded Status |  |  |
Benefit obligations at end of year | 2,207 | 2,363 | 2,272
Fair value of plan assets at end of year | 1,834 | 1,921 | 1,806
Net amount recognized | (373) | (442) |
Amounts Recognized in Balance Sheet |  |  |
Noncurrent assets | 70 | 20 |
Current liabilities | (27) | (30) |
Noncurrent liabilities | (416) | (432) |
Net amount recognized | (373) | (442) |
Amounts Recognized in Accumulated Other Comprehensive Income (Loss) |  |  |
Actuarial loss | 866 | 902 |
Transition/prior service cost | 0 | 1 |
Amounts recognized in accumulated other comprehensive income | 866 | 903 |
Accumulated benefit obligation | $ 2,171 | $ 2,325 |
Weighted-Average Assumptions Used to Determine Benefit Obligations |  |  |
Discount rate | 2.98% | 2.65% |
Expected long-term rate of return on plan assets | 5.70% | 5.70% |
Long-term rate of compensation increase | 3.50% | 3.50% |
ESOP growth rate | 0.00% | 0.00% |
Medical cost trend rate of increase | 0.00% | 0.00% |
Interest Crediting Rate | 2.85% | 2.48% |
International | Pension Plans |  |  |
Change in Benefit Obligations |  |  |
Benefit obligations at beginning of year | $ 1,013 | $ 876 |
Service cost | 19 | 17 | 14
Interest cost | 20 | 21 | 22
Participants’ contributions | 6 | 5 |
Acquisitions/plan amendments | 0 | 30 |
Actuarial loss (gain) | (39) | 65 |
Foreign exchange impact | (38) | 46 |
Termination benefits | 0 | 0 |
Curtailments and settlements | (4) | (7) |
Benefit payments | (40) | (40) |
Other | 0 | 0 |
Benefit obligations at end of year | 937 | 1,013 | 876
Change in Plan Assets |  |  |
Fair value of plan assets at beginning of year | 698 | 586 |
Actual return on plan assets | 45 | 59 |
Company contributions | 33 | 36 |
Participants’ contributions | 6 | 5 |
Foreign exchange impact | (14) | 26 |
Settlements and acquisitions | (5) | 26 |
Benefit payments | (40) | (40) |
Other | 0 | 0 |
Fair value of plan assets at end of year | 723 | 698 | 586
Funded Status |  |  |
Benefit obligations at end of year | 937 | 1,013 | 876
Fair value of plan assets at end of year | 723 | 698 | $ 586
Net amount recognized | (214) | (315) |
Amounts Recognized in Balance Sheet |  |  |
Noncurrent assets | 72 | 18 |
Current liabilities | (13) | (14) |
Noncurrent liabilities | (273) | (319) |
Net amount recognized | (214) | (315) |
Amounts Recognized in Accumulated Other Comprehensive Income (Loss) |  |  |
Actuarial loss | 179 | 255 |
Transition/prior service cost | 9 | 7 |
Amounts recognized in accumulated other comprehensive income | 188 | 262 |
Accumulated benefit obligation | $ 872 | $ 946 |
Weighted-Average Assumptions Used to Determine Benefit Obligations |  |  |
Discount rate | 2.10% | 1.61% |
Expected long-term rate of return on plan assets | 2.72% | 2.93% |
Long-term rate of compensation increase | 2.89% | 2.62% |
ESOP growth rate | 0.00% | 0.00% |
Medical cost trend rate of increase | 0.00% | 0.00% |
Interest Crediting Rate | 0.84% | 0.83% |

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- Definition Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Medical Cost Trend Rate for next fiscal. + References No definition available. + Details
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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=123447040&loc=d3e1928-114920 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + 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 (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + 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 (b)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: 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 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + 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)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation 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 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted-average interest crediting rate used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate. + 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 (k)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + 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 (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: 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 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -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 + Details
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. + 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 (h)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: 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 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 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. 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 (b)(5) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -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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