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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Retirement Benefits [Abstract] |
Change in Postretirement Benefit Obligation | The change in the Company's postretirement benefit obligation is as follows:
| Year Ended December 31,
(In millions) | 2021 |  | 2020 |  | 2019
Change in Benefit Obligation |  |  |  |  |
Benefit obligation at beginning of period | $ | 33 |  |  | $ | 34 |  |  | $ | 30 |
Service cost | 2 |  |  | 2 |  |  | 2 |
Interest cost | 1 |  |  | 1 |  |  | 1 |
Actuarial (gain) loss | 1 |  |  | (2) |  |  | 3 |
Benefits paid | (2) |  |  | (2) |  |  | (2) |
Benefit obligation at end of period | $ | 35 |  |  | $ | 33 |  |  | $ | 34 |
Change in Plan Assets |  |  |  |  |
Fair value of plan assets at end of period | — |  |  | — |  |  | — |
Funded status at end of period | $ | (35) |  |  | $ | (33) |  |  | $ | (34) |
Schedule of Amounts Recognized in Balance Sheet | Amounts recognized in the balance sheet consist of the following:
| December 31,
(In millions) | 2021 |  | 2020 |  | 2019
Current liabilities | $ | 2 |  |  | $ | 2 |  |  | $ | 2 |
Non-current liabilities | 33 |  |  | 31 |  |  | 32 |
| $ | 35 |  |  | $ | 33 |  |  | $ | 34 |
Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Loss) | Amounts recognized in accumulated other comprehensive income (loss) consist of the following:
| December 31,
(In millions) | 2021 |  | 2020 |  | 2019
Net actuarial (gain) loss | $ | — |  |  | $ | — |  |  | $ | 2 |
Prior service cost | (2) |  |  | (3) |  |  | (4) |
| $ | (2) |  |  | $ | (3) |  |  | $ | (2) |
Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Loss)
| Year Ended December 31,
(In millions) | 2021 |  | 2020 |  | 2019
Components of Net Periodic Postretirement Benefit Cost |  |  |  |  |
Service cost | $ | 2 |  |  | $ | 2 |  |  | $ | 2 |
Interest cost | 1 |  |  | 1 |  |  | 1 |
Amortization of prior service cost | (1) |  |  | (1) |  |  | (1) |
Net periodic postretirement cost | $ | 2 |  |  | $ | 2 |  |  | $ | 2 |
Other Changes in Benefit Obligations Recognized in Other Comprehensive Income (Loss) |  |  |  |  |
Net (gain) loss | $ | — |  |  | $ | (2) |  |  | $ | 3 |
Amortization of prior service cost | 1 |  |  | 1 |  |  | 1 |
Total recognized in other comprehensive income | 1 |  |  | (1) |  |  | 4 |
Total recognized in net periodic benefit cost (income) and other comprehensive income | $ | 3 |  |  | $ | 1 |  |  | $ | 6 |
Assumptions Used to Determine Projected Postretirement Benefit Obligations and Postretirement Costs | Assumptions used to determine projected postretirement benefit obligations and postretirement costs are as follows:
| December 31,
| 2021 |  | 2020 |  | 2019
Discount rate(1) | 2.85 | % |  | 2.65 | % |  | 3.50 | %
Health care cost trend rate for medical benefits assumed for next year (pre-65) | 6.50 | % |  | 6.75 | % |  | 7.00 | %
Health care cost trend rate for medical benefits assumed for next year (post-65) | 4.75 | % |  | 5.00 | % |  | 5.25 | %
Ultimate trend rate (pre-65) | 4.50 | % |  | 4.50 | % |  | 4.50 | %
Ultimate trend rate (post-65) | 4.50 | % |  | 4.50 | % |  | 4.50 | %
Year that the rate reaches the ultimate trend rate (pre-65) | 2030 |  | 2030 |  | 2030
Year that the rate reaches the ultimate trend rate (post-65) | 2023 |  | 2023 |  | 2023
_______________________________________________________________________________ (1)Represents the year end rates used to determine the projected benefit obligation. To compute postretirement cost in 2021, 2020 and 2019, respectively, the beginning of year discount rates of 2.65 percent, 3.50 percent and 4.45 percent were used.
Schedule of Estimated Benefit Payments | The following estimated benefit payments under the Company's postretirement plans, which reflect expected future service, are expected to be paid as follows:
(In millions) |
2022 | $ | 2 |
2023 | 2 |
2024 | 2 |
2025 | 2 |
2026 | 2 |
Years 2027 - 2031 | 7 |

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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and 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) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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