Leases Lease Cost and Supplemental Information (Details) - USD ($) $ in Millions	6 Months Ended
Dec. 31, 2019	Jun. 30, 2019
Leases [Abstract]
Operating Lease, Cost	$ 19	$ 18
Short-term Lease, Cost	2	5
Finance Lease, Right-of-Use Asset, Amortization	1	1
Finance Lease, Interest Expense	0	0
Variable Lease, Cost	3	2
Finance Lease, Principal Payments	2	2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	2	1
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 0	$ 3
Operating Lease, Weighted Average Remaining Lease Term	10 years 5 months 6 days
Finance Lease, Weighted Average Remaining Lease Term	1 year 8 months 12 days
Lessee, Operating Lease, Discount Rate	5.75%
Lessee, Finance Lease, Discount Rate	10.00%

Amount of interest expense on finance lease liability.

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-Section 50
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- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Discount rate used by lessee to determine present value of finance lease payments.

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- Definition

Discount rate used by lessee to determine present value of operating lease payments.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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