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Components of Net Periodic Benefit Cost (Tables) | 3 Months Ended
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Sep. 30, 2023
Retirement Benefits [Abstract] |
Schedule of Components of Net Benefit Costs | Net periodic benefit cost for benefit plans included the following components:
|  | Three Months Ended September 30, |  |
($ in millions) |  | 2023 |  | 2022 |  |  |  |
Service cost |  | $ | 4 |  |  | $ | 4 |  |  |  |  |
Interest cost |  | 13 |  |  | 12 |  |  |  |  |
Expected return on plan assets |  | (14) |  |  | (14) |  |  |  |  |
Amortization of actuarial loss |  | 1 |  |  | 1 |  |  |  |  |
Amortization of prior service credit |  | (1) |  |  | (1) |  |  |  |  |
Settlement costs |  | 1 |  |  | — |  |  |  |  |
Net periodic benefit cost |  | $ | 4 |  |  | $ | 2 |  |  |  |  |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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