Leases - Additional Information (Detail) - USD ($) $ in Millions	Jul. 01, 2019	Sep. 30, 2019
Operating lease right of use assets		$ 1,290
Short term lease term		12 months
Operating lease liabilities non current		$ 1,329
Accounting Standards Update 2016-02 [Member]
Operating lease right of use assets	$ 1,400
Operating lease liabilities,current	200
Operating lease liabilities non current	1,400
Adjustment to retained earnings	$ 9

Amount of the cumulative effect on retained earnings net of related income tax effect.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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