XML 62 R51.htm IDEA: XBRL DOCUMENT v3.21.1
Financing Arrangements and Derivative Financial Instruments - Other Narrative (Details)
$ in Millions
Mar. 31, 2021
USD ($)
Debt Instrument [Line Items]  
Line of credit facility, maximum borrowing capacity $ 9,318
Credit arrangements, unused amount $ 3,396
Debt, percentage bearing variable interest 25.00%
Long-term Debt  
Debt Instrument [Line Items]  
Line of credit facility, maximum borrowing capacity $ 8,283
Credit arrangements, unused amount 2,785
Short-term Debt  
Debt Instrument [Line Items]  
Line of credit facility, maximum borrowing capacity 1,035
Credit arrangements, unused amount $ 611
Variable Rate Credit Arrangements  
Debt Instrument [Line Items]  
Interest rate 2.87%