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Intangible Assets and Goodwill (Details 1) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Summary of roll forward of the changes in goodwill        
Goodwill, beginning of period     $ 5,762,100,000  
Other     (1,600,000)  
Goodwill, end of period $ 5,760,500,000   5,760,500,000  
Accumulated impairment losses related to goodwill 0   0  
Amortization and impairment of acquired intangible assets $ 111,000,000 $ 82,600,000 813,200,000 $ 215,600,000
Impairment of intangible assets     $ 629,300,000 $ 19,300,000