Pension and Other Postretirement Benefits	9 Months Ended
Mar. 31, 2019
Compensation And Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits	NOTE 10. PENSION AND OTHER POSTRETIREMENT BENEFITS Certain of the Company’s U.S. employees participated in defined benefit pension and postretirement plans sponsored by 21CF (“Shared Plans”), which include participants of other 21CF subsidiaries. Plans that are sponsored by entities included in the Company are accounted for as defined benefit pension plans. Shared Plans were accounted for as multiemployer benefit plans. Therefore, no asset or liability was recorded to recognize the funded status. The related pension expenses allocated to the Company were based primarily on benefits earned by active employees and accounted for in a manner similar to a defined contribution plan. In contemplation of the Separation, during the second quarter of fiscal 2019, the pension benefit assets and liabilities of the Shared Plans allocable to the Company’s employees were transferred to the Company. Assets of $630 million, projected benefit obligations of $765 million and $188 million of accumulated other comprehensive loss ($143 million, net of tax) were recorded for pension benefits transferred from 21CF. In January 2019, the postretirement benefit plan liabilities allocable to the Company’s employees were transferred to the Company. Projected benefit obligations of $98 million and $18 million of accumulated other comprehensive loss ($14 million, net of tax) were recorded for postretirement benefits transferred from 21CF. The net periodic benefit cost was $13 million and $15 million for the three months ended March 31, 2019 and 2018, respectively, and $40 million and $89 million for the nine months ended March 31, 2019 and 2018, respectively.

Pension and Other Postretirement Benefits

9 Months Ended

Mar. 31, 2019

Compensation And Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits

NOTE 10. PENSION AND OTHER POSTRETIREMENT BENEFITS

Certain of the Company’s U.S. employees participated in defined benefit pension and postretirement plans sponsored by 21CF (“Shared Plans”), which include participants of other 21CF subsidiaries. Plans that are sponsored by entities included in the Company are accounted for as defined benefit pension plans.

Shared Plans were accounted for as multiemployer benefit plans. Therefore, no asset or liability was recorded to recognize the funded status. The related pension expenses allocated to the Company were based primarily on benefits earned by active employees and accounted for in a manner similar to a defined contribution plan.

In contemplation of the Separation, during the second quarter of fiscal 2019, the pension benefit assets and liabilities of the Shared Plans allocable to the Company’s employees were transferred to the Company. Assets of $630 million, projected benefit obligations of $765 million and $188 million of accumulated other comprehensive loss ($143 million, net of tax) were recorded for pension benefits transferred from 21CF. In January 2019, the postretirement benefit plan liabilities allocable to the Company’s employees were transferred to the Company. Projected benefit obligations of $98 million and $18 million of accumulated other comprehensive loss ($14 million, net of tax) were recorded for postretirement benefits transferred from 21CF.

The net periodic benefit cost was $13 million and $15 million for the three months ended March 31, 2019 and 2018, respectively, and $40 million and $89 million for the nine months ended March 31, 2019 and 2018, respectively.