Employee Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended | | |
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Feb. 29, 2020 | Dec. 31, 2018 |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Trading Securities, Realized Gain (Loss) | $ 7 | $ 3 | $ 0 | | |
Overview [Abstract] | | | | | |
Cash Balance Plan, Percentage increase over Treasury bill rate | 1.00% | | | | |
Cash Balance Plan, Minimum Annual Rate | 5.00% | | | | |
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] | | | | | |
Non-current liabilities | $ (19) | (41) | | | |
Accumulated benefit obligation for the defined benefit pension plans | $ 227 | 214 | | | |
U.S. pension plan assets as a percentage of total pension plan assets | 93.00% | | | | |
US pension plan obligation as a percentage of total plan obligations | 91.00% | | | | |
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] | | | | | |
Aggregate projected benefit obligation | $ 92 | 201 | | | |
Aggregate accumulated benefit obligation | 91 | 200 | | | |
Aggregate fair value of plan assets | 75 | 163 | | | |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | | | | | |
Settlements | 1 | 2 | 3 | | |
Multiemployer Plans [Abstract] | | | | | |
Multiemployer Plan, Contributions by Employer | 5 | 4 | 4 | | |
Multi-employer Plan Expected Future Contrib Y1 | 1 | | | | |
Multi-employer Plan Expected Future Contrib Y2 | 1 | | | | |
Multi-employer Plan Expected Future Contrib Y3 | 0 | | | | |
Multi-employer Plan Expected Future Contrib Y4 | 0 | | | | |
Multiemployer Plans, Plan Contributions | 0 | | | | |
EDC [Member] | | | | | |
Defined Contribution Plans [Abstract] | | | | | |
Defined Contribution Plan, Cost | 21 | 18 | 17 | | |
SIP and SSP [Member] | | | | | |
Defined Contribution Plans [Abstract] | | | | | |
Defined Contribution Plan, Cost | 20 | 19 | 17 | | |
Individually Significant Multiemployer Plans [Member] | | | | | |
Multiemployer Plans [Abstract] | | | | | |
Multiemployer Plan, Contributions by Employer | 1 | 1 | 1 | | |
All Other Multiemployer Plans [Member] | | | | | |
Multiemployer Plans [Abstract] | | | | | |
Multiemployer Plan, Contributions by Employer | $ 4 | $ 3 | $ 3 | | |
Central States [Member] | Scenario, Forecast [Member] | | | | | |
Multiemployer Plans [Abstract] | | | | | |
Multiemployer Plans, Collective-Bargaining Arrangement, Percentage of Participants | | | | 50.00% | 11.00% |
Equity Securities [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Actual Plan Asset Allocations | 20.00% | 25.00% | | | |
Equity Securities [Member] | Maximum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 15.00% | 20.00% | | | |
Equity Securities [Member] | Minimum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 5.00% | 16.00% | | | |
Equity Securities [Member] | Scenario, Forecast [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | | | | | 20.00% |
Equity Funds [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 7.80% | 8.50% | 8.70% | | |
International Equity Funds [Member] | Maximum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 15.00% | 8.00% | | | |
International Equity Funds [Member] | Minimum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 5.00% | 6.00% | | | |
Fixed Income Securities [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 4.40% | 3.20% | 3.70% | | |
Defined Benefit Plan, Actual Plan Asset Allocations | 80.00% | 75.00% | | | |
Fixed Income Securities [Member] | Maximum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 90.00% | 81.00% | | | |
Fixed Income Securities [Member] | Minimum [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 70.00% | 69.00% | | | |
Fixed Income Securities [Member] | Scenario, Forecast [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | | | | | 80.00% |
Domestic Plan [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 4.50% | 5.00% | 5.25% | | |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.70% | 4.25% | | | |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 3.00% | 3.00% | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 4.25% | 4.65% | 4.33% | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase | 3.00% | 3.00% | 3.00% | | |
Foreign Plan [Member] | | | | | |
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 7.13% | 7.07% | 6.72% | | |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 4.90% | 5.25% | | | |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 3.89% | 3.89% | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 7.09% | 6.46% | 6.66% | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase | 4.30% | 4.32% | 4.47% | | |
Pension Plan [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Defined Benefit Plan, Employer Discretionary Contribution Amount | $ 22 | $ 7 | | | |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | | | | | |
Defined Benefit Plan, Benefit Obligation | 230 | 216 | $ 206 | | |
Service cost | 3 | 3 | 3 | | |
Interest cost | 9 | 10 | 9 | | |
Actuarial losses (gains), net | 12 | 9 | | | |
Benefits paid | (3) | (3) | | | |
Currency exchange adjustments | 0 | (1) | | | |
Settlements | (7) | (8) | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 213 | 177 | 169 | | |
Actual return on plan assets | 23 | 11 | | | |
Employer contributions | 23 | 8 | | | |
Benefits paid | (3) | (3) | | | |
Currency exchange adjustments | 0 | 0 | | | |
Settlements | (7) | (8) | | | |
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] | | | | | |
Current liabilities | (1) | (1) | | | |
Non-current liabilities | (16) | (38) | | | |
Net amount recognized | (17) | (39) | | | |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | | | | | |
Service cost | 3 | 3 | 3 | | |
Interest cost | 9 | 10 | 9 | | |
Expected return on assets | (8) | (8) | (9) | | |
Amortization of net actuarial loss | 4 | 3 | 4 | | |
Settlements | 1 | 2 | 3 | | |
Net periodic benefit costs | 9 | 10 | 10 | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Total recognized in OCI | (8) | 1 | (5) | | |
Summary of amounts included in AOCL | | | | | |
Prior service cost (credit) | 1 | 1 | | | |
Net losses | 46 | 54 | | | |
Amounts in AOCL | 47 | 55 | | | |
Payment for Pension and Other Postretirement Benefits [Abstract] | | | | | |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | 11 | | | | |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 11 | | | | |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] | | | | | |
Pension plan expected future benefit payments - year three | 12 | | | | |
Pension plan expected future benefit payments - year four | 13 | | | | |
Pension plan expected future benefit payments - year five | 13 | | | | |
DPension plan expected future benefit payments - years six through ten | 66 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 213 | 177 | 169 | | |
Pension Plan [Member] | Scenario, Forecast [Member] | | | | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Estimated net actuarial loss that will be amortized from AOCL into periodic benefit cost in the next year | | | | | $ (3) |
Payment for Pension and Other Postretirement Benefits [Abstract] | | | | | |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | | | | | $ 1 |
Pension Plan [Member] | Settlement Effects [Member] | | | | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax | (1) | (2) | (3) | | |
Pension Plan [Member] | Recognition of net actuarial loss [Member] | | | | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax | (4) | (4) | (4) | | |
Pension Plan [Member] | Current Year Actuarial Gain Loss [Member] | | | | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax | (3) | 7 | 2 | | |
Other Postretirement Benefits Plan [Member] | | | | | |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | | | | | |
Defined Benefit Plan, Benefit Obligation | 6 | 6 | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7 | 6 | | | |
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] | | | | | |
Non-current assets | 4 | 3 | | | |
Non-current liabilities | (3) | (3) | | | |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | | | | | |
Net periodic benefit costs | 0 | 0 | 0 | | |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | |
Total recognized in OCI | 1 | 0 | $ 1 | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7 | 6 | | | |
Underfunded Plan [Member] | Pension Plan [Member] | | | | | |
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] | | | | | |
Funded status of plan / net amount recognized | (17) | (39) | | | |
Fair Value, Measurements, Nonrecurring [Member] | Assets, Total [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 220 | 183 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 220 | 183 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Pension Plan [Member] | Assets, Total [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 213 | 177 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 213 | 177 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Other Postretirement Benefits Plan [Member] | Assets, Total [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7 | 6 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7 | 6 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | | |
Marketable Securities | 48 | 35 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 4 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 4 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member] | Cash and Cash Equivalents [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 4 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2 | 4 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member] | Cash and Cash Equivalents [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Domestic Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 21 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 21 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Corporate Debt Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 16 | 13 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 16 | 13 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Income Funds [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 164 | 122 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 164 | 122 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Domestic Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 30 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 30 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 14 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 14 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Domestic Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 20 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 20 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Foreign Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Foreign Corporate Debt Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 16 | 13 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 16 | 13 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Fixed Income Funds [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 158 | 118 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 158 | 118 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Domestic Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 29 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 29 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member] | Foreign Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 13 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 13 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Domestic Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 1 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 1 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Foreign Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Foreign Corporate Debt Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Fixed Income Funds [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 6 | 4 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | $ 6 | 4 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Domestic Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 1 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 1 | | | |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member] | Foreign Plan [Member] | Equity Securities [Member] | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | 1 | | | |
Assets of the Pension Plans [Abstract] | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | | $ 1 | | | |