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Taxes on Income - Carryforwards and valuation allowance (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Taxes on Income      
Increase (decrease) in valuation allowances $ 39 $ 20 $ 20
Amount of valuation allowance change that impacted the effective tax rate 3 $ 17 $ 24
Federal and foreign      
Taxes on Income      
Net operating loss carryforwards 246    
Federal | Tax Credit Carryforwards [Member]      
Taxes on Income      
Net operating loss carryforwards 102    
State      
Taxes on Income      
Net operating loss carryforwards $ 277