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Retirement Plans and Post Retirement Benefits Funded Status, Assumptions Used in Benefit Obligations and Amounts Recognized in Balance Sheets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Change in Benefit Obligation [Roll Forward] |  |  |
Beginning of year balance | $ 319 | $ 312 |
Service cost | 1 | 1 | $ 3
Interest cost | 7 | 9 | 12
Actuarial (gain)/loss | (8) | 17 |
Foreign exchange rate changes | 1 | 1 |
Benefits Paid | 19 | 21 |
End of year balance | 301 | 319 | 312
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 310 | 294 |
Actual return on plan assets | 5 | 35 |
Employer contribution | 0 | 0 |
Foreign exchange rate changes | 1 | 2 |
Fair value of plan assets, end of year balance | 296 | 310 | 294
Funded status | (6) | (10) |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax | (95) | (101) |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax | (6) | (8) |
Total | (101) | (109) |
Amounts Recognized in Balance Sheet [Abstract] |  |  |
Noncurrent pension assets, included in “Other assets” | 6 | 7 |
Current pension liabilities, included in “Accounts payable and accrued liabilities” | 0 | 0 |
Noncurrent pension liabilities, included in “Other long-term liabilities” | (12) | (17) |
Benefits Expected to be Paid from Benefit Plans [Abstract] |  |  |
2022 | 76 |  |
2023 | 19 |  |
2024 | 16 |  |
2025 | 16 |  |
2026 | 16 |  |
2027– 2031 | 72 |  |
Defined Benefit Plan, Plan Assets, Benefits Paid | 19 | 21 |
Other comprehensive income before reclassifications, net of taxes | (5) | (8) | (4)
Amortization of amounts included in net periodic benefit cost | 5 | 2 | 3
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax | (1) | 3 | 0
Multi-strategy Funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 48 |  |
Fair value of plan assets, end of year balance | 0 | 48 |
Domestic stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 56 |  |
Fair value of plan assets, end of year balance |  | 56 |
International stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 46 |  |
Fair value of plan assets, end of year balance |  | 46 |
Domestic bond funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 94 |  |
Fair value of plan assets, end of year balance | 180 | 94 |
Significant Unobservable Inputs (Level 3) |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance | 0 | 0 |
Significant Unobservable Inputs (Level 3) | Multi-strategy Funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance | 0 | 0 |
Significant Unobservable Inputs (Level 3) | Domestic stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance |  | 0 |
Significant Unobservable Inputs (Level 3) | International stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance |  | 0 |
Significant Unobservable Inputs (Level 3) | Domestic bond funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 167 |  |
Fair value of plan assets, end of year balance | 58 | 167 |
Fair Value, Inputs, Level 1 [Member] | Multi-strategy Funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 48 |  |
Fair value of plan assets, end of year balance | 0 | 48 |
Fair Value, Inputs, Level 1 [Member] | Domestic stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 56 |  |
Fair value of plan assets, end of year balance |  | 56 |
Fair Value, Inputs, Level 1 [Member] | International stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 46 |  |
Fair value of plan assets, end of year balance |  | 46 |
Fair Value, Inputs, Level 1 [Member] | Domestic bond funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 17 |  |
Fair value of plan assets, end of year balance | 0 | 17 |
Fair Value, Inputs, Level 2 |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 28 |  |
Fair value of plan assets, end of year balance | 204 | 28 |
Fair Value, Inputs, Level 2 | Multi-strategy Funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance | 0 | 0 |
Fair Value, Inputs, Level 2 | Domestic stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance |  | 0 |
Fair Value, Inputs, Level 2 | International stock funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance |  | 0 |
Fair Value, Inputs, Level 2 | Domestic bond funds |  |  |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 0 |  |
Fair value of plan assets, end of year balance | 180 | 0 |
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
Change in Benefit Obligation [Roll Forward] |  |  |
Foreign exchange rate changes |  | 0 |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Total | 101 |  |
Benefits Expected to be Paid from Benefit Plans [Abstract] |  |  |
Amortization of amounts included in net periodic benefit cost | 5 | 5 | $ 4
Defined Benefit, US Plans [Member] |  |  |
Change in Benefit Obligation [Roll Forward] |  |  |
Beginning of year balance | 262 |  |
End of year balance | 247 | 262 |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 246 |  |
Fair value of plan assets, end of year balance | 237 | 246 |
Funded status | $ (11) | $ (16) |
Weighted average assumptions for obligations as of measurement date [Abstract] |  |  |
Discount rate | 2.60% | 2.30% |
Defined Benefit, Canadian Plans [Member] |  |  |
Change in Benefit Obligation [Roll Forward] |  |  |
Beginning of year balance | $ 58 |  |
End of year balance | 54 | $ 58 |
Change in Assets (Fair Value) [Roll Forward] |  |  |
Fair value of plan assets, beginning of year balance | 64 |  |
Fair value of plan assets, end of year balance | 59 | 64 |
Funded status | $ 5 | $ 6 |
Weighted average assumptions for obligations as of measurement date [Abstract] |  |  |
Discount rate | 2.60% | 2.30% |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation 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 foreign currency translation gain (loss) which (increases) decreases 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 (a)(5) -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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- 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 http://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 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 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 http://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 http://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 http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details
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- Definition Amount, before tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income of 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 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 2: 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 + Details
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