General - Additional Information (Details) $ / shares in Units, € in Millions	3 Months Ended		6 Months Ended			12 Months Ended
	Nov. 30, 2021 USD ($) $ / shares shares	Nov. 30, 2020 USD ($) shares	Nov. 30, 2021 USD ($) $ / shares shares	May 31, 2021 USD ($) $ / shares	Nov. 30, 2020 USD ($) shares	May 31, 2023 USD ($)	May 31, 2021 USD ($) Employee	Dec. 16, 2021 USD ($)	Dec. 08, 2021 USD ($)	Nov. 30, 2021 EUR (€) shares	Jan. 26, 2016 shares
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Gross contract assets related to in-transit shipments	$ 926,000,000		$ 926,000,000	$ 715,000,000			$ 715,000,000
Contract assets net of deferred unearned revenue	683,000,000		683,000,000	572,000,000			572,000,000
Contract liabilities related to advance payments from customers	9,000,000		9,000,000	9,000,000			$ 9,000,000
Stock-based compensation	43,000,000	$ 46,000,000	112,000,000		$ 121,000,000
Restructuring plan execution period							18 months
Business realignment costs	44,000,000		111,000,000	116,000,000
Business realignment costs, net of tax	$ 34,000,000		$ 85,000,000	$ 90,000,000
Business realignment costs per diluted share | $ / shares	$ 0.13		$ 0.31	$ 0.33
Business employee severance costs paid	$ 25,000,000		$ 56,000,000
Denominated debt as a net investment hedge | €										€ 212
Stock repurchase program number of shares authorized to be repurchased | shares											25,000,000
Number of shares repurchased | shares	900,000	0.0	2,800,000		0.0
Treasury stock acquired, average cost per share | $ / shares	$ 223.90		$ 267.27
Payments for repurchase of common stock	$ 199,000,000		$ 748,000,000
Stock repurchase program, remaining number of shares authorized to be available for repurchase | shares	2,300,000		2,300,000							2,300,000
Dividends payable, date declared			Nov. 19, 2021
Dividends payable amount per share | $ / shares	$ 0.75		$ 0.75
Dividends payable, date to be paid			Dec. 27, 2021
Dividends payable, date of record			Dec. 13, 2021
Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of employees will affect in workforce reduction plan | Employee							5,500
Minimum [Member] | Forecast [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Business realignment costs						$ 300,000,000
Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of employees will affect in workforce reduction plan | Employee							6,300
Maximum [Member] | Forecast [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Business realignment costs						$ 575,000,000
Subsequent Event
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Stock repurchase program number of shares authorized to be repurchased, amount								$ 5,000,000,000
Subsequent Event | Accelerated Share Repurchase Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Stock repurchase program number of shares authorized to be repurchased, amount								$ 1,500,000,000
Equity and Commercial Agreements | Delhivery | Subsequent Event
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity investment									$ 100,000,000