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Leases Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating Leases, Rent Expense		$ 18		$ 36
Operating Lease, Cost	$ 21		$ 39
Variable Lease, Cost	20		26
Short-term Lease, Cost	3		3
Finance lease, amortization expense	3		5
Finance Lease, Interest Expense	9		15
Finance lease expenses	12		20
Lease, Cost	$ 56		$ 88

X

- Definition

Finance lease, amortization expense

+ References

No definition available.

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X

- Definition

Finance lease expenses

+ References

No definition available.

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- Definition

Amount of interest expense on finance lease liability.

+ References

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-Section 50
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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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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.

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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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