XML 31 R20.htm IDEA: XBRL DOCUMENT v3.21.1
Investment And Other Income
3 Months Ended
Mar. 31, 2021
Investment And Other Income [Abstract]  
Investment And Other Income (12) Investment and Other Income:

The following is a summary of the components of Investment and Other Income:

For the three months ended

March 31,

($ in millions)

2021

2020

Interest and dividend income

$

-

$

2 

Pension and OPEB benefit

1 

1 

All other, net

1 

2 

Total investment and other income, net

$

2 

$

5 

Pension and OPEB credit (cost) consists of interest costs, expected return on plan assets, amortization of prior service costs (credit) and amortization of unrecognized (gain) loss.