Leases - Summary of Future Minimum Lease Payments, Operating and Finance Leases (Details) - USD ($) $ in Millions	Aug. 31, 2019	Jun. 01, 2019
Schedule Of Future Minimum Lease Payments For Operating Leases And Finance Leases [Line Items]
2020 (remainder)	$ 1,794
2021	2,260
2022	2,028
2023	1,799
2024	1,501
Thereafter	7,616
Total lease payments	16,998
Less imputed interest	(2,836)
Present value of lease liability	14,162
Operating Leases
2020 (remainder)	1,757
2021	2,246
2022	2,014
2023	1,787
2024	1,490
Thereafter	7,538
Total lease payments	16,832
Less imputed interest	(2,799)
Present value of lease liability	14,033	$ 14,200
Finance Leases
2020 (remainder)	37
2021	14
2022	14
2023	12
2024	11
Thereafter	78
Total lease payments	166
Less imputed interest	(37)
Present value of lease liability	129
Aircraft and Related Equipment [Member]
Operating Leases
2020 (remainder)	234
2021	207
2022	190
2023	154
2024	58
Thereafter	85
Total lease payments	928
Less imputed interest	(61)
Present value of lease liability	867
Facilities and Other [Member]
Operating Leases
2020 (remainder)	1,523
2021	2,039
2022	1,824
2023	1,633
2024	1,432
Thereafter	7,453
Total lease payments	15,904
Less imputed interest	(2,738)
Present value of lease liability	$ 13,166

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

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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 five.

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

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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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Operating lease and finance lease liability.

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

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-Publisher FASB
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-SubTopic 20
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Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for finance lease, due in remainder of fiscal year following latest fiscal year ended.

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-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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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 payments for operating lease.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.

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