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Strategic Investments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Aug. 06, 2021
Mar. 01, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]          
Equity method investments $ 266 $ 266     $ 319
Measurement alternative investments(1) 164 164     183
Equity Securities, FV-NI 4 4     414
Notes receivable 0 0     2
Investments 434 434     $ 918
Equity Securities, FV-NI, Gain (Loss) (24) (178)      
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity $ 289 $ 289      
Preventice          
Schedule of Investments [Line Items]          
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High, Including Prior Interest       $ 300  
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage       22.00%  
Farapulse          
Schedule of Investments [Line Items]          
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High, Including Prior Interest     $ 125    
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage     27.00%