Commitments - Summary of Future Minimum Lease Payments, Operating and Finance Leases (Details) $ in Millions	Aug. 31, 2021 USD ($)
Schedule Of Future Minimum Lease Payments For Operating Leases And Finance Leases [Line Items]
2022 (remainder)	$ 2,091
2023	2,564
2024	2,206
2025	1,914
2026	1,666
Thereafter	8,520
Total lease payments	18,961
Less imputed interest	(2,812)
Present value of lease liability	16,149
Operating Leases
2022 (remainder)	2,024
2023	2,539
2024	2,178
2025	1,891
2026	1,644
Thereafter	7,816
Total lease payments	18,092
Less imputed interest	(2,447)
Present value of lease liability	15,645
Finance Leases
2022 (remainder)	67
2023	25
2024	28
2025	23
2026	22
Thereafter	704
Total lease payments	869
Less imputed interest	(365)
Present value of lease liability	504
Aircraft and Related Equipment [Member]
Operating Leases
2022 (remainder)	195
2023	194
2024	102
2025	69
2026	61
Thereafter	184
Total lease payments	805
Less imputed interest	(60)
Present value of lease liability	745
Facilities and Other [Member]
Operating Leases
2022 (remainder)	1,829
2023	2,345
2024	2,076
2025	1,822
2026	1,583
Thereafter	7,632
Total lease payments	17,287
Less imputed interest	(2,387)
Present value of lease liability	$ 14,900

Finance lease liability payments due after year four.

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Lessee operating lease and finance lease liability payments due after year four.

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- Definition

Lessee operating lease and finance lease liability payments due due next twelve months.

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- Definition

Lessee operating lease and finance lease liability payments due remainder of fiscal year.

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Lessee operating lease and finance lease liability payments due year four.

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- Definition

Lessee operating lease and finance lease liability payments due year two.

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Lessee operating lease and finance lease liability undiscounted excess amount.

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Lessee operating lease and finance lease liability payments due year three.

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Lessee operating lease liability payments due after year four.

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Operating lease and finance lease liability.

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Schedule of future minimum lease payments for operating leases and finance leases.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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-Section 45
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-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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Amount of lessee's undiscounted obligation for lease payments for finance lease.

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.

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Amount of lessee's undiscounted obligation for lease payment for operating lease.

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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