XML 96 R81.htm IDEA: XBRL DOCUMENT v3.21.1
Financing Arrangement (Senior Notes) (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Feb. 01, 2021
Feb. 29, 2016
Mar. 31, 2021
Feb. 11, 2021
Mar. 31, 2020
Feb. 24, 2016
Debt Instrument [Line Items]            
Senior Notes     $ 1,876   $ 996  
Proceeds from Debt, Net of Issuance Costs   $ 989 $ 1,478      
2021 Notes            
Debt Instrument [Line Items]            
Effective interest rate           3.94%
Long-term Debt         600 $ 600
Debt Instrument, Maturity Date     Mar. 01, 2021      
Contractual interest rate of 0.75% Convertible Senior Notes due 2016           3.70%
Repayments of Unsecured Debt $ 600          
Debt Instrument, Periodic Payment, Interest $ 9          
2026 Notes            
Debt Instrument [Line Items]            
Effective interest rate           4.97%
Debt Instrument, Convertible, Remaining Discount Amortization Period     4 years 10 months 24 days      
Long-term Debt     $ 400   400 $ 400
Debt Instrument, Maturity Date     Mar. 01, 2026      
Contractual interest rate of 0.75% Convertible Senior Notes due 2016           4.80%
2031 Notes            
Debt Instrument [Line Items]            
Effective interest rate       1.98%    
Debt Instrument, Convertible, Remaining Discount Amortization Period     9 years 10 months 24 days      
Long-term Debt     $ 750 $ 750    
Debt Instrument, Maturity Date     Feb. 15, 2031      
Contractual interest rate of 0.75% Convertible Senior Notes due 2016       1.85%    
2051 Notes            
Debt Instrument [Line Items]            
Effective interest rate       3.04%    
Debt Instrument, Convertible, Remaining Discount Amortization Period     29 years 10 months 24 days      
Long-term Debt     $ 750 $ 750    
Debt Instrument, Maturity Date     Feb. 15, 2051      
Contractual interest rate of 0.75% Convertible Senior Notes due 2016       2.95%    
Senior Notes            
Debt Instrument [Line Items]            
Long-term Debt     $ 1,900   1,000  
Unaccreted discount     (7) $ (6) 1 $ 2
Debt Issuance Costs, Net     (17) $ 16 (3) $ (9)
Debt Instrument, Fair Value Disclosure     $ 1,873   $ 1,030  
Debt Instrument, Redemption Price, Percentage     100.00%      
Change of control repurchase event [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Redemption Price, Percentage     101.00%