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Planned Divestiture of Latin American Business - Pre-tax Net Income (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Low        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Pre-tax net income $ 59 $ 36 $ 131 $ 108
High        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Pre-tax net income $ 72 $ 45 $ 160 $ 131