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Variable Interest Entities Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021	Sep. 30, 2013	Sep. 30, 2012
Variable Interest Entities
Other long-term liabilities	$ 1,801		$ 1,801		$ 2,041
Accrued interest	10		10		10
VIE Financing
Face amount	$ 40		$ 40			$ 360
Financial instruments subject to mandatory redemption, interest rate, stated percentage	7.00%		7.00%
Liabilities
Current maturities of long-term debt of variable interest entities	$ 44		$ 44		43
Long-term debt of variable interest entities, net	984		984		1,006
Liabilities, Current	4,793		4,793		4,979
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entities
Other long-term liabilities	18		18		20
Liabilities	1,059		1,059		1,082		$ 1,000
Liabilities
Liabilities, Current	57		57		56
Interest Expense	12	$ 13	25	$ 26
Accounts Payable and Accrued Liabilities	$ 3		$ 3		$ 3
JSCCG
VIE Financing
Face amount							900
Holdco
VIE Financing
Face amount							$ 100
SCCG
VIE Financing
Debt and Lease Obligation						$ 400

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

No definition available.

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