[Line Items] for Fair Value of Plan Assets [Table]

No definition available.

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- Definition

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

+ References

+ Details

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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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
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Retirement Benefits (Fair Value of Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Accumulated benefit obligation	$ 195	$ 208	$ 208
Fair value of plan assets	311	291	270
Pension Benefits
Fair Value of Plan Assets [Line Items]
Accumulated benefit obligation		55	52
Fair value of plan assets	44	45
Cash and Cash Equivalents [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	22	18
Cash and Cash Equivalents [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	1	1
Mutual Fund [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	175	202
Mutual Fund [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	24	20
Fixed Income Securities [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	114	71
Fixed Income Securities [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	19	24
Level 1 [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	197	220
Level 1 [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	25	21
Level 1 [Member] \| Cash and Cash Equivalents [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	22	18
Level 1 [Member] \| Cash and Cash Equivalents [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	1	1
Level 1 [Member] \| Mutual Fund [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	175	202
Level 1 [Member] \| Mutual Fund [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	24	20
Level 1 [Member] \| Fixed Income Securities [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 1 [Member] \| Fixed Income Securities [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	114	71
Level 2 [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	19	24
Level 2 [Member] \| Cash and Cash Equivalents [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] \| Cash and Cash Equivalents [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] \| Mutual Fund [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] \| Mutual Fund [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] \| Fixed Income Securities [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	114	71
Level 2 [Member] \| Fixed Income Securities [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	19	24
Level 3 [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Cash and Cash Equivalents [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Cash and Cash Equivalents [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Mutual Fund [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Mutual Fund [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Fixed Income Securities [Member] \| Other Postretirement Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] \| Fixed Income Securities [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Fair value of plan assets	0	0
Funded Plans [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Projected benefit obligation	50	55
Accumulated benefit obligation	50	55
Fair value of plan assets	44	45	43
Unfunded Plans [Member] \| Pension Benefits
Fair Value of Plan Assets [Line Items]
Projected benefit obligation	26	31
Accumulated benefit obligation	26	31	34
Fair value of plan assets	$ 0	$ 0	$ 0