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Employee Benefits - Benefit Obligation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Fair value of plan assets at beginning of year | $ 2,231 |  |
Fair value of plan assets at end of year | 1,464 | $ 2,231 |
Amounts recognized in consolidated balance sheets: |  |  |
Non-current assets | 232 | 359 |
Non-current liabilities | (180) | (262) |
Retirement Plans |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Net benefit obligation at beginning of year | 2,122 | 2,220 |
Service cost | 3 | 4 | $ 4
Interest cost | 48 | 40 | 52
Plan participants’ contributions | 0 | 0 |
Actuarial gain | (636) | (55) |
Gross benefits paid | (86) | (77) |
Foreign currency effect | (44) | (10) |
Other adjustments | 0 | 0 |
Net benefit obligation at end of year | 1,407 | 2,122 | 2,220
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Fair value of plan assets at beginning of year | 2,231 | 2,243 |
Actual return on plan assets | (647) | 58 |
Employer contributions | 11 | 11 |
Plan participants’ contributions | 0 | 0 |
Gross benefits paid | (86) | (77) |
Foreign currency effect | (45) | (4) |
Fair value of plan assets at end of year | 1,464 | 2,231 | 2,243
Funded status | 57 | 109 |
Amounts recognized in consolidated balance sheets: |  |  |
Non-current assets | 232 | 359 |
Current liabilities | (10) | (10) |
Non-current liabilities | (165) | (240) |
Total amounts recognized in consolidated balance sheets | 57 | 109 |
Accumulated benefit obligation | 1,401 | 2,110 |
Plans with accumulated benefit obligation in excess of the fair value of plan assets: |  |  |
Projected benefit obligation | 175 | 250 |
Accumulated benefit obligation | 168 | 238 |
Fair value of plan assets | 0 | 0 |
Amounts recognized in accumulated other comprehensive loss, net of tax: |  |  |
Net actuarial loss (gain) | 400 | 350 |
Prior service credit | 0 | 2 |
Total recognized | 400 | 352 |
Postretirement Plans |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Net benefit obligation at beginning of year | 28 | 36 |
Service cost | 0 | 0 | 0
Interest cost | 1 | 1 | 1
Plan participants’ contributions | 0 | 2 |
Actuarial gain | (6) | (2) |
Gross benefits paid | (3) | (5) |
Foreign currency effect | 0 | 0 |
Other adjustments | 0 | (4) |
Net benefit obligation at end of year | 20 | 28 | 36
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Fair value of plan assets at beginning of year | 6 | 9 |
Actual return on plan assets | 1 | 0 |
Employer contributions | 0 | 0 |
Plan participants’ contributions | 0 | 2 |
Gross benefits paid | (2) | (5) |
Foreign currency effect | 0 | 0 |
Fair value of plan assets at end of year | 5 | 6 | $ 9
Funded status | (15) | (22) |
Amounts recognized in consolidated balance sheets: |  |  |
Non-current assets | 0 | 0 |
Current liabilities | 0 | 0 |
Non-current liabilities | (15) | (22) |
Total amounts recognized in consolidated balance sheets | (15) | (22) |
Amounts recognized in accumulated other comprehensive loss, net of tax: |  |  |
Net actuarial loss (gain) | (39) | (36) |
Prior service credit | (12) | (14) |
Total recognized | $ (51) | $ (50) |

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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 https://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 60 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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- Definition Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + 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 https://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 https://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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- Definition Amount of contributions received by defined benefit plan from participant which increases plan assets. + 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)(4) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets 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 (b)(2) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for 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)(1) -URI https://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 https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details
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