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Debt (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Apr. 27, 2022
Mar. 31, 2019
Debt Disclosure [Abstract]            
Loss on early extinguishment of debt $ 0 $ 0 $ 42 $ 0    
Debt Instrument [Line Items]            
Long-term Line of Credit         $ 3,500 $ 3,500
Senior Notes due November 2025            
Debt Disclosure [Abstract]            
Debt Instrument, Interest Rate, Stated Percentage 3.80%   3.80%      
Early Repayment of Senior Debt     $ 600      
Repayments of Senior Debt     641      
Debt Instrument [Line Items]            
Repayments of Senior Debt     641      
Long-term Debt, Excluding Current Maturities $ 1,000   $ 1,000      
Debt Instrument, Interest Rate, Stated Percentage 3.80%   3.80%      
Early Repayment of Senior Debt     $ 600      
Outstanding balance of Senior Notes due November 2025            
Debt Disclosure [Abstract]            
Debt Instrument, Interest Rate, Stated Percentage 3.50%   3.50%      
Debt Instrument [Line Items]            
Long-term Debt, Excluding Current Maturities $ 400   $ 400      
Debt Instrument, Interest Rate, Stated Percentage 3.50%   3.50%      
Senior Notes due August 2023            
Debt Disclosure [Abstract]            
Early Repayment of Senior Debt     $ 600      
Repayments of Senior Debt     603      
Debt Instrument [Line Items]            
Repayments of Senior Debt     603      
Early Repayment of Senior Debt     $ 600