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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Provision
The income tax provision consisted of the following:
 Three months ended September 30,Nine months ended September 30,
(In millions, except rates)2021202020212020
Income before income taxes$2,163 $341 $3,454 $899 
Income tax expense 545 92 840 216 
Effective income tax rate25.2 %27.0 %24.3 %24.0 %