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Equity - Change In Common Units (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Class of Stock [Line Items]        
Limited Partners' Capital Account, Units Outstanding 3,084,700,000   3,082,500,000  
Stock Issued During Period, Shares, Dividend Reinvestment Plan 1,200,000      
Partners' Capital Account, Unit-based Payment Arrangement, Number of Units 1,000,000.0      
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 40,329 $ 34,254 $ 39,345 $ 31,388
Distributions to partners (608) $ (406)    
Series H Preferred Units        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 908   893  
Distributions to partners 0      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 15      
Preferred Stock, Shares Outstanding 900,000      
Series A Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 943   958  
Distributions to partners (30)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 15      
Preferred Stock, Shares Outstanding 950,000      
Series C Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 440   440  
Distributions to partners (8)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 8      
Preferred Stock, Shares Outstanding 18,000,000      
Series B Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 547   556  
Distributions to partners (18)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 9      
Preferred Stock, Shares Outstanding 550,000      
Series D Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 434   434  
Distributions to partners (9)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 9      
Preferred Stock, Shares Outstanding 17,800,000      
Series E Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 786   786  
Distributions to partners (15)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 15      
Preferred Stock, Shares Outstanding 32,000,000      
Series F Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 504   496  
Distributions to partners 0      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 8      
Preferred Stock, Shares Outstanding 500,000      
Series G Preferred Units [Member]        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 1,515   1,488  
Distributions to partners 0      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 27      
Preferred Stock, Shares Outstanding 1,484,780      
Preferred Unitholders        
Class of Stock [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 6,077   $ 6,051  
Distributions to partners (80)      
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest $ 106