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Earnings Per Share - Narrative (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Common stock equivalents (in shares) 9 4 6 2
Stock Options and Restricted Stock Awards        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Common stock equivalents (in shares) 1 3 2 3
Convertible Debt Securities | Preferred Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Common stock equivalents (in shares) 47 39 47 39
Convertible Debt Securities | 4.00% senior exchangeable notes due 2025 | Senior Secured Notes        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Common stock equivalents (in shares) 42 42 42 42