Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan.

+ References

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- Definition

Amount, before tax, of 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
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-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580

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- Definition

Defined Benefit Plan, Mandatory Employer Contributions, Current Fiscal Year

+ References

No definition available.

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Defined Benefit Plan, Pension Award Payment, Percentage

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Defined Benefit Plan, Percentage Of Projected Benefit Obligation

+ References

No definition available.

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Employee Benefit Plans - Contributions and Narrative (Details) £ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Apr. 30, 2022 USD ($)	Apr. 30, 2022 GBP (£)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021
Schedule of Defined Benefit Plans Disclosures [Line Items]
Pension award payment percentage	7.50%	7.50%
Increase to PBO	$ 48,000,000	£ 39
Percentage of total PBO							1.40%
Actual returns and actuarial experience, additional loss	$ 31,000,000
Retiree Health
Schedule of Defined Benefit Plans Disclosures [Line Items]
Reduction in the Company's postretirement benefit obligation			$ 0	$ 0	$ 23,000,000	$ 0
U.S. Plans \| Pension Benefits
Schedule of Defined Benefit Plans Disclosures [Line Items]
Reduction in the Company's postretirement benefit obligation			0	$ 0	0	$ 0
U.S. Plans \| Pension Benefits \| Qualified Plan
Schedule of Defined Benefit Plans Disclosures [Line Items]
Mandatory future contributions			$ 0		$ 0