Debt - Short and Long-Term Debt (Details)	Jul. 05, 2022 USD ($)	Jun. 03, 2022	May 31, 2022 USD ($)	May 31, 2022 GBP (£)	May 31, 2022 EUR (€)	Nov. 17, 2021 USD ($)	Sep. 18, 2021 USD ($)	Aug. 31, 2021 USD ($)
Debt Instrument [Line Items]
Total short-term debt			$ 2,787,000,000					$ 1,305,000,000
Total long-term debt, less current portion			10,670,000,000					$ 7,675,000,000
3.300% unsecured notes due 2021
Debt Instrument [Line Items]
Face amount			8,000,000,000
Stated interest rate							3.30%	3.30%
Total short-term debt			0					$ 1,250,000,000
Debt redeemed							$ 1,250,000,000
3.100% unsecured notes due 2022
Debt Instrument [Line Items]
Total short-term debt			731,000,000					0
Unsecured credit facility due 2023 | Unsecured credit facility
Debt Instrument [Line Items]
Long-term debt			1,997,000,000					0
Unsecured credit facility due 2024 | Unsecured credit facility
Debt Instrument [Line Items]
Long-term debt			998,000,000					0
Other
Debt Instrument [Line Items]
Total short-term debt			57,000,000					56,000,000
Unsecured notes
Debt Instrument [Line Items]
Other			27,000,000					29,000,000
Total long-term debt, less current portion			10,670,000,000					$ 7,675,000,000
Unsecured notes | Total $4 billion note issuance
Debt Instrument [Line Items]
Face amount			4,000,000,000
Unsecured notes | 3.100% unsecured notes due 2022
Debt Instrument [Line Items]
Stated interest rate								3.10%
Long-term debt			$ 0					$ 731,000,000
Unsecured notes | 3.100% unsecured notes due 2022 | Subsequent Event
Debt Instrument [Line Items]
Stated interest rate		3.10%
Unsecured notes | 3.100% unsecured notes due 2022 | Subsequent Event | Forecast
Debt Instrument [Line Items]
Debt redeemed	$ 731,000,000
Unsecured notes | 4.400% unsecured notes due 2042
Debt Instrument [Line Items]
Stated interest rate			4.40%	4.40%	4.40%
Long-term debt			$ 263,000,000					263,000,000
Unsecured notes | $850 million note issuance
Debt Instrument [Line Items]
Face amount			$ 850,000,000
Unsecured notes | 0.9500% unsecured notes due 2023
Debt Instrument [Line Items]
Face amount						$ 850,000,000
Stated interest rate			0.95%	0.95%	0.95%	0.95%
Long-term debt			$ 848,000,000					0
Unsecured notes | Total $1.5 billion note issuance
Debt Instrument [Line Items]
Face amount			$ 1,500,000,000
Unsecured notes | 3.200% unsecured notes due 2030
Debt Instrument [Line Items]
Stated interest rate			3.20%	3.20%	3.20%
Long-term debt			$ 498,000,000					497,000,000
Unsecured notes | 4.100% unsecured notes due 2050
Debt Instrument [Line Items]
Stated interest rate			4.10%	4.10%	4.10%
Long-term debt			$ 792,000,000					792,000,000
Unsecured notes | Total $6 billion note issuance
Debt Instrument [Line Items]
Face amount			$ 6,000,000,000
Unsecured notes | 3.450% unsecured notes due 2026
Debt Instrument [Line Items]
Stated interest rate			3.45%	3.45%	3.45%
Long-term debt			$ 1,443,000,000					1,442,000,000
Unsecured notes | 4.650% unsecured notes due 2046
Debt Instrument [Line Items]
Stated interest rate			4.65%	4.65%	4.65%
Long-term debt			$ 318,000,000					318,000,000
Unsecured notes | Total $8 billion note issuance
Debt Instrument [Line Items]
Face amount			$ 8,000,000,000
Unsecured notes | 3.800% unsecured notes due 2024
Debt Instrument [Line Items]
Stated interest rate			3.80%	3.80%	3.80%
Long-term debt			$ 1,154,000,000					1,154,000,000
Unsecured notes | 4.500% unsecured notes due 2034
Debt Instrument [Line Items]
Stated interest rate			4.50%	4.50%	4.50%
Long-term debt			$ 301,000,000					301,000,000
Unsecured notes | 4.800% unsecured notes due 2044
Debt Instrument [Line Items]
Stated interest rate			4.80%	4.80%	4.80%
Long-term debt			$ 868,000,000					868,000,000
Unsecured notes | Total £700 million note issuance
Debt Instrument [Line Items]
Face amount | £				£ 700,000,000
Unsecured notes | 3.600% unsecured Pound Sterling notes due 2025
Debt Instrument [Line Items]
Stated interest rate			3.60%	3.60%	3.60%
Long-term debt			$ 374,000,000					408,000,000
Unsecured notes | Total €750 million note issuance
Debt Instrument [Line Items]
Face amount | €					€ 750,000,000
Unsecured notes | 2.125% unsecured Euro notes due 2026
Debt Instrument [Line Items]
Stated interest rate			2.125%	2.125%	2.125%
Long-term debt			$ 790,000,000					873,000,000
Unsecured credit facility
Debt Instrument [Line Items]
Total short-term debt			$ 1,998,000,000					$ 0