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Net Earnings Per Share From Continuing Operations (Narrative) (Details) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Weighted average MCPS converted shares 11.0 0.0 0.0
Mandatory convertible preferred stock dividends $ (164) $ (136) $ (68)
Series A Preferred Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Weighted average MCPS converted shares 11.0    
Mandatory convertible preferred stock dividends $ (78)    
Series B Preferred Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 8.6    
Mandatory convertible preferred stock dividends $ (86)    
Common stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 0.0 1.0 0.0
Preferred stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount   17.1 10.0