Pension and Postretirement Plans - Narrative (Details) $ in Millions |
3 Months Ended |
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Dec. 31, 2022
USD ($)
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| Retirement Benefits [Abstract] | |
| Net actuarial gain (loss) | $ (8) |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss), recognized immediately as component of net periodic benefit (cost) credit, for change in value of benefit obligation or plan assets from experience different from that assumed, change in actuarial assumption, or consequence of temporarily deviating from substantive plan. Includes, but is not limited to, amount in excess of 10 percent of greater of fair value of plan assets or benefit obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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