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Equity, Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Equity (Textual)    
Open market stock purchases $ 126  
Remaining authorized repurchase amount $ 1,200  
Treasury Stock [Member]    
Equity (Textual)    
Stock purchases under purchase program (shares) 1,334,550 0
Open market stock purchases $ 126