Contingencies and Commitments - Narrative (Details) $ in Millions	3 Months Ended
	Feb. 28, 2021 USD ($)	Apr. 01, 2021 lawsuit classAction	May 27, 2020 classAction numberOfCases	Apr. 08, 2020 subsidiary	May 02, 2019 lawsuit
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit					2
Reserve funds	$ 629
Escrow deposit	172
Number of subsidiaries | subsidiary				2
Number of class actions | classAction			2
Number of cases consolidated with a new lead plaintiff | numberOfCases			3
Subsequent Event
Loss Contingencies [Line Items]
Number of lawsuits, COVID-19 | lawsuit		70
Number of class actions, COVID-19 | classAction		10
Prepaid expenses and other
Loss Contingencies [Line Items]
Escrow deposit	$ 142