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Debt - Narrative (Details) - USD ($)
Jun. 15, 2021
Oct. 21, 2022
Sep. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]        
Commercial paper     $ 1,200,000,000 $ 210,000,000
Short-term debt     1,688,000,000 778,000,000
Long-term line of credit     $ 0 $ 0
Commercial Paper        
Debt Instrument [Line Items]        
Weighted average interest rate     2.68% 0.14%
Line of Credit        
Debt Instrument [Line Items]        
Maximum borrowing capacity     $ 2,500,000,000 $ 2,500,000,000
Line of Credit | Subsequent Event        
Debt Instrument [Line Items]        
Maximum borrowing capacity   $ 3,000,000,000    
1.25% Notes        
Debt Instrument [Line Items]        
Short-term debt     $ 490,000,000  
Stated interest rate     1.25%  
1.75% Notes        
Debt Instrument [Line Items]        
Short-term debt       $ 568,000,000
Stated interest rate       1.75%
3.375% Notes Due September 15, 2021        
Debt Instrument [Line Items]        
Stated interest rate 3.375%      
Repayment of debt $ 350,000,000