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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Pension Plans and Other Postretirement Plans | Weighted Average Assumptions Used in Calculating the Benefit Obligations and the Net Amount Recognized
| Pension Benefits | Other Postretirement Benefits
| For the years ended December 31,
| 2018 | 2017 | 2018 | 2017
Discount rate | 4.35 | % | 3.73 | % | 4.23 | % | 3.55 | %
Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Pension Plans
| For the years ended December 31,
| 2018 | 2017 | 2016
Discount rate | 3.73 | % | 4.22 | % | 4.25 | %
Expected long-term rate of return on plan assets | 6.60 | % | 6.60 | % | 6.70 | %
Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Other Postretirement Plans
| For the years ended December 31,
| 2018 | 2017 | 2016
Discount rate | 3.55 | % | 3.97 | % | 4.00 | %
Expected long-term rate of return on plan assets | 6.60 | % | 6.60 | % | 6.60 | %
Assumed Health Care Cost Trend Rates | Assumed Health Care Cost Trend Rates
| For the years ended December 31,
| 2018 | 2017 | 2016
Pre-65 health care cost trend rate | 6.50 | % | 6.75 | % | 6.90 | %
Post-65 health care cost trend rate | N/A |  | N/A |  | N/A |
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) | 4.50 | % | 4.50 | % | 5.00 | %
Year that the rate reaches the ultimate trend rate | 2028 |  | 2028 |  | 2024 |
Change in Benefit Obligation | Change in Benefit Obligation
| Pension Benefits | Other Postretirement Benefits
| For the years ended December 31,
| 2018 | 2017 | 2018 | 2017
Benefit obligation — beginning of year | $ | 4,376 |  | $ | 5,650 |  | $ | 256 |  | $ | 272 |
Service cost | 4 |  | 4 |  | — |  | — |
Interest cost | 142 |  | 170 |  | 7 |  | 8 |
Plan participants’ contributions | — |  | — |  | 11 |  | 11 |
Actuarial (gain) loss | (6 | ) | 139 |  | — |  | 5 |
Settlements | — |  | (1,647 | ) | — |  | — |
Changes in assumptions | (329 | ) | 332 |  | (11 | ) | 10 |
Benefits and expenses paid | (186 | ) | (273 | ) | (45 | ) | (51 | )
Retiree drug subsidy | — |  | — |  | 2 |  | 1 |
Foreign exchange adjustment | (1 | ) | 1 |  | — |  | — |
Benefit obligation — end of year | $ | 4,000 |  | $ | 4,376 |  | $ | 220 |  | $ | 256 |
Change in Plan Assets | Change in Plan Assets
| Pension Benefits | Other Postretirement Benefits
| For the years ended December 31,
| 2018 | 2017 | 2018 | 2017
Fair value of plan assets — beginning of year | $ | 3,592 |  | $ | 4,678 |  | $ | 114 |  | $ | 138 |
Actual return on plan assets | (172 | ) | 549 |  | (2 | ) | 11 |
Employer contributions | 103 |  | 280 |  | — |  | — |
Benefits paid [1] | (161 | ) | (248 | ) | (27 | ) | (35 | )
Expenses paid | (17 | ) | (21 | ) | — |  | — |
Settlements | — |  | (1,647 | ) | — |  | — |
Foreign exchange adjustment | (1 | ) | 1 |  | — |  | — |
Fair value of plan assets — end of year | $ | 3,344 |  | $ | 3,592 |  | $ | 85 |  | $ | 114 |
Funded status — end of year | $ | (656 | ) | $ | (784 | ) | $ | (135 | ) | $ | (142 | )
[1] Other postretirement benefits paid represent non-key employee postretirement medical benefits paid from the Company's prefunded trust fund.
Defined Benefit Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets | Defined Benefit Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets
| As of December 31,
| 2018 | 2017
Projected benefit obligation | $ | 4,000 |  | $ | 4,376 |
Accumulated benefit obligation | $ | 4,000 |  | $ | 4,376 |
Fair value of plan assets | $ | 3,344 |  | $ | 3,592 |
Amounts Recognized in Consolidated Balance Sheets | Amounts Recognized in the Consolidated Balance Sheets
| Pension Benefits | Other Postretirement Benefits
| As of December 31,
| 2018 | 2017 | 2018 | 2017
Other liabilities | $ | 656 |  | $ | 784 |  | $ | 135 |  | $ | 142 |
Net Periodic Cost (Benefit) | Net Periodic Cost (Benefit)
| Pension Benefits | Other Postretirement Benefits
| For the years ended December 31,
| 2018 | 2017 | 2016 | 2018 | 2017 | 2016
Service cost | $ | 4 |  | $ | 4 |  | $ | 2 |  | $ | — |  | $ | — |  | $ | — |
Interest cost | 142 |  | 170 |  | 237 |  | 7 |  | 8 |  | 11 |
Expected return on plan assets | (227 | ) | (267 | ) | (311 | ) | (7 | ) | (8 | ) | (10 | )
Amortization of prior service credit | — |  | — |  | — |  | (7 | ) | (7 | ) | (6 | )
Amortization of actuarial loss | 49 |  | 56 |  | 56 |  | 6 |  | 5 |  | 5 |
Settlements | — |  | 750 |  | — |  | — |  | — |  | — |
Net periodic cost (benefit) | $ | (32 | ) | $ | 713 |  | $ | (16 | ) | $ | (1 | ) | $ | (2 | ) | $ | — |
Amounts Recognized in Other Comprehensive Income (Loss) | Amounts Recognized in Other Comprehensive Income (Loss)
| Pension Benefits | Other Postretirement Benefits
| For the years ended December 31,
| 2018 | 2017 | 2016 | 2018 | 2017 | 2016
Amortization of actuarial loss | $ | 49 |  | $ | 56 |  | $ | 56 |  | $ | 6 |  | $ | 5 |  | $ | 5 |
Settlement loss | — |  | 750 |  | — |  | — |  | — |  | — |
Amortization of prior service credit | — |  | — |  | — |  | (6 | ) | (7 | ) | (6 | )
Net loss arising during the year | (91 | ) | (209 | ) | (66 | ) | 3 |  | (12 | ) | (4 | )
Total | $ | (42 | ) | $ | 597 |  | $ | (10 | ) | $ | 3 |  | $ | (14 | ) | $ | (5 | )
Amounts in Accumulated Other Comprehensive Income (Loss), Before Tax, not yet Recognized as Components of Net Periodic Benefit Cost | Amounts in Accumulated Other Comprehensive Income (Loss), Before Tax, not yet Recognized as Components of Net Periodic Benefit Cost
| Pension Benefits | Other Postretirement Benefits
| As of December 31,
| 2018 | 2017 | 2016 | 2018 | 2017 | 2016
Net loss | $ | (2,008 | ) | $ | (1,966 | ) | $ | (2,563 | ) | $ | (120 | ) | $ | (129 | ) | $ | (122 | )
Prior service credit | — |  | — |  | — |  | 72 |  | 78 |  | 85 |
Total | $ | (2,008 | ) | $ | (1,966 | ) | $ | (2,563 | ) | $ | (48 | ) | $ | (51 | ) | $ | (37 | )
Plan Assets | Target Asset Allocation
| Pension Plans | Other Postretirement Plans
| Minimum | Maximum | Minimum | Maximum
Equity securities | 5 | % | 35 | % | 15 | % | 45 | %
Fixed income securities | 50 | % | 70 | % | 55 | % | 85 | %
Alternative assets | — | % | 45 | % | — | % | — | %
Other Postretirement Plan Assets at Fair Value as of December 31, 2018
Asset Category | Level 1 | Level 2 | Level 3 | Total
Short-term investments | $ | 4 |  | $ | — |  | $ | — |  | $ | 4 |
Fixed Income Securities: |  |  |  |
Corporate | — |  | 19 |  | — |  | 19 |
RMBS | — |  | 15 |  | — |  | 15 |
U.S. Treasuries | 6 |  | 13 |  | — |  | 19 |
Foreign government | — |  | 1 |  | — |  | 1 |
CMBS | — |  | 2 |  | — |  | 2 |
Other fixed income | — |  | 2 |  | — |  | 2 |
Equity Securities: |  |  |  |
Large-cap | 23 |  | — |  | — |  | 23 |
Total other postretirement plan assets at fair value [1] | $ | 33 |  | $ | 52 |  | $ | — |  | $ | 85 |
[1] | Excludes approximately $1 of investment receivables net of investment payables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.
Other Postretirement Plan Assets at Fair Value as of December 31, 2017
Asset Category | Level 1 | Level 2 | Level 3 | Total
Short-term investments | $ | 4 |  | $ | — |  | $ | — |  | $ | 4 |
Fixed Income Securities: |  |  |  |
Corporate | — |  | 25 |  | — |  | 25 |
RMBS | — |  | 17 |  | — |  | 17 |
U.S. Treasuries | 1 |  | 25 |  | — |  | 26 |
Foreign government | — |  | 1 |  | — |  | 1 |
CMBS | — |  | 5 |  | — |  | 5 |
Other fixed income | — |  | 4 |  | 1 |  | 5 |
Equity Securities: |  |  |  |
Large-cap | 30 |  | — |  | — |  | 30 |
Total other postretirement plan assets at fair value [1] | $ | 35 |  | $ | 77 |  | $ | 1 |  | $ | 113 |
[1] Excludes approximately $0 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value. Also excludes approximately $1 of interest receivable.Pension Plan Assets at Fair Value as of December 31, 2018
Asset Category | Level 1 | Level 2 | Level 3 | Total
Short-term investments: | $ | 50 |  | $ | 60 |  | $ | — |  | $ | 110 |
Fixed Income Securities: |  |  |  |
Corporate | — |  | 1,663 |  | 14 |  | 1,677 |
RMBS | — |  | 62 |  | 1 |  | 63 |
U.S. Treasuries | 10 |  | 120 |  | — |  | 130 |
Foreign government | — |  | 15 |  | 2 |  | 17 |
CMBS | — |  | 22 |  | — |  | 22 |
Other fixed income [1] | — |  | 52 |  | 1 |  | 53 |
Mortgage Loans | — |  | — |  | 133 |  | 133 |
Equity Securities: |  |  |  |
Domestic | 376 |  | 3 |  | — |  | 379 |
International | 303 |  | — |  | — |  | 303 |
Total pension plan assets at fair value, in the fair value hierarchy [2] | $ | 739 |  | $ | 1,997 |  | $ | 151 |  | $ | 2,887 |
Other Investments, at net asset value [3]: |  |  |  |
Private Market Alternatives |  |  |  |  |  |  | 272 |
Hedge funds |  |  |  |  |  |  | 186 |
Total pension plan assets at fair value. | $ | 739 |  | $ | 1,997 |  | $ | 151 |  | $ | 3,345 |
[1] | Includes ABS, municipal bonds, and CDOs.
[2] | Excludes approximately $1 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.
[3] | Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.
Pension Plan Assets at Fair Value as of December 31, 2017
Asset Category | Level 1 | Level 2 | Level 3 | Total
Short-term investments: | $ | 21 |  | $ | 168 |  | $ | — |  | $ | 189 |
Fixed Income Securities: |  |  |  |
Corporate | — |  | 1,549 |  | 14 |  | 1,563 |
RMBS | — |  | 28 |  | 2 |  | 30 |
U.S. Treasuries | 3 |  | 74 |  | — |  | 77 |
Foreign government | — |  | 16 |  | 1 |  | 17 |
CMBS | — |  | 28 |  | 2 |  | 30 |
Other fixed income [1] | — |  | 97 |  | 2 |  | 99 |
Mortgage Loans | — |  | — |  | 140 |  | 140 |
Equity Securities: |  |  |  |
Large-cap domestic | 595 |  | 89 |  | — |  | 684 |
Mid-cap domestic | 11 |  | — |  | — |  | 11 |
International | 343 |  | — |  | — |  | 343 |
Total pension plan assets at fair value, in the fair value hierarchy [2] | $ | 973 |  | $ | 2,049 |  | $ | 161 |  | $ | 3,183 |
Other Investments, at net asset value [3]: |  |  |  |
Private Market Alternatives |  |  |  |  |  |  | 168 |
Hedge funds |  |  |  |  |  |  | 212 |
Total pension plan assets at fair value. | $ | 973 |  | $ | 2,049 |  | $ | 161 |  | $ | 3,563 |
[1] | Includes ABS, municipal bonds, and CDOs.
[2] | Excludes approximately $1 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value. Also excludes approximately $30 of interest receivable.
[3] Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.
Pension Plan Assets Fair Value Measurements Using Significant Unobservable Inputs |
2018 Pension Plan Asset Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Assets | Corporate | RMBS | Foreign government | Mortgage loans | Other [1] | Totals
Fair Value as of January 1, 2018 | $ | 14 |  | $ | 2 |  | $ | 1 |  | $ | 140 |  | $ | 4 |  | $ | 161 |
Realized gains,net | — |  | — |  | — |  | — |  | — |  | — |
Changes in unrealized gains (losses), net | (1 | ) | — |  | — |  | (1 | ) | — |  | (2 | )
Purchases | 5 |  | — |  | 1 |  | — |  | — |  | 6 |
Settlements | — |  | — |  | — |  | — |  | — |  | — |
Sales | (4 | ) | (1 | ) | — |  | (6 | ) | (3 | ) | (14 | )
Transfers into Level 3 | — |  | — |  | — |  | — |  | — |  | — |
Transfers out of Level 3 | — |  | — |  | — |  | — |  | — |  | — |
Fair Value as of December 31, 2018 | $ | 14 |  | $ | 1 |  | $ | 2 |  | $ | 133 |  | $ | 1 |  | $ | 151 |
[1] "Other" includes U.S. Treasuries, Other fixed income and CMBS investments.
2017 Pension Plan Asset Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Assets | Corporate | RMBS | Foreign government | Mortgage loans | Other [1] | Totals
Fair Value as of January 1, 2017 | $ | 13 |  | $ | 10 |  | $ | 1 |  | $ | 121 |  | $ | 22 |  | $ | 167 |
Realized gains,net | — |  | — |  | — |  | — |  | 2 |  | 2 |
Changes in unrealized gains, net | 2 |  | — |  | — |  | 2 |  | 2 |  | 6 |
Purchases | 11 |  | 1 |  | — |  | 17 |  | 7 |  | 36 |
Settlements | — |  | (5 | ) | — |  | — |  | (1 | ) | (6 | )
Sales | (12 | ) | (4 | ) | — |  | — |  | (19 | ) | (35 | )
Transfers into Level 3 | — |  | — |  | — |  | — |  | 2 |  | 2 |
Transfers out of Level 3 | — |  | — |  | — |  | — |  | (11 | ) | (11 | )
Fair Value as of December 31, 2017 | $ | 14 |  | $ | 2 |  | $ | 1 |  | $ | 140 |  | $ | 4 |  | $ | 161 |
[1]"Other" includes U.S. Treasuries, Other fixed income and CMBS investments.
Company Contributions | Company Contributions
Employer Contributions | Pension Benefits | Other Postretirement Benefits
2018 | $ | 103 |  | $ | — |
2017 | $ | 281 |  | $ | — |
Amounts of Benefits Expected to be Paid over the next Ten Years from Pension and other Postretirement Plans | Amounts of Benefits Expected to be Paid over the next Ten Years from Pension and other Postretirement Plans as of December 31, 2018
| Pension Benefits | Other Postretirement Benefits
2019 | $ | 239 |  | $ | 27 |
2020 | 239 |  | 24 |
2021 | 246 |  | 22 |
2022 | 251 |  | 20 |
2023 | 250 |  | 18 |
2024 - 2028 | 1,263 |  | 67 |
Total | $ | 2,488 |  | $ | 178 |

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