XML 60 R50.htm IDEA: XBRL DOCUMENT v3.21.1
Debt (Narrative) (Details) - USD ($)
1 Months Ended 3 Months Ended
Feb. 09, 2021
Mar. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]      
Facility expiration date   May 18, 2021  
Commercial paper issued   $ 300,000,000  
Commercial paper repaid   $ 315,000,000  
Commercial paper maturity duration minimum   20 days  
Commercial paper maturity duration maximum   48 days  
Commercial paper outstanding   $ 60,000,000  
Credit available under line of credit   600,000,000  
Amount drawn under line of credit   0  
Repayments of line of credit   0  
Amount outstanding under line of credit   0  
Board of Directors authorized debt issuance   6,000,000,000  
Previous Board Of Directors Remaining Debt Issuance $ 2,250,000,000    
Board of Directors remaining debt issuance   6,000,000,000  
Secured debt under receivables securitization facility   0 $ 0
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Revolving credit facility available credit   $ 2,000,000,000.0  
Facility expiration date   Jun. 08, 2023  
Credit facility term   5 years  
Revolving credit facility withdrawals   $ 0  
Allowable debt per debt to earnings before interest taxes depreciation and amortization coverage ratio (as defined in the facility)   36,200,000,000  
Outstanding debt (as defined by facility)   28,200,000,000  
Cross-default provision (as defined by facility)   $ 150,000,000