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Income Taxes (Tables)
3 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Summary of Changes in Unrecognized Tax Benefits

Changes in unrecognized tax benefits are summarized as follows for the three months ended December 31, 2019.

 

(In millions)

 

 

 

Balance at October 1, 2019

$

165

 

Increases related to positions taken on items from prior years

$

2

 

Decreases related to positions taken on items from prior years

 

(1

)

Increases related to positions taken in the current year

 

1

 

Lapse of statute of limitations

 

(1

)

Balance at December 31, 2019

$

166