Leases - Summary of Future Minimum Lease Payments, Operating and Finance Leases (Details) - USD ($) $ in Millions	May 31, 2022	May 31, 2021
Schedule Of Future Minimum Lease Payments For Operating Leases And Finance Leases [Line Items]
2023	$ 2,866
2024	2,597
2025	2,292
2026	2,020
2027	1,775
Thereafter	8,664
Total lease payments	20,214
Less imputed interest	(2,816)
Present value of lease liability	17,398
Operating Leases
2023	2,819
2024	2,562
2025	2,265
2026	1,998
2027	1,754
Thereafter	7,995
Total lease payments	19,393
Less imputed interest	(2,463)
Present value of lease liability	16,930	$ 15,583
Finance Leases
2023	47
2024	35
2025	27
2026	22
2027	21
Thereafter	669
Total lease payments	821
Less imputed interest	(353)
Present value of lease liability	468	$ 525
Aircraft and Related Equipment [Member]
Operating Leases
2023	198
2024	117
2025	86
2026	79
2027	78
Thereafter	164
Total lease payments	722
Less imputed interest	(54)
Present value of lease liability	668
Facilities and Other [Member]
Operating Leases
2023	2,621
2024	2,445
2025	2,179
2026	1,919
2027	1,676
Thereafter	7,831
Total lease payments	18,671
Less imputed interest	(2,409)
Present value of lease liability	$ 16,262

Lessee operating lease and finance lease liability payments due.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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

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- Definition

Lessee operating lease and finance lease liability undiscounted excess amount.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Operating lease and finance lease liability.

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No definition available.

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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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

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

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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fifth 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).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance 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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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth 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).

+ References

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- Definition

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).

+ References

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- Definition

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).

+ References

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- Definition

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).

+ References

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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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- Definition

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

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth 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).

+ References

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- Definition

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).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth 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).

+ References

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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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- Definition

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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- Definition

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

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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