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Debt and Credit Agreements (Tables)
9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]  
Activity Related to Long-Term Debt
Total activity related to long-term debt as of the end of third quarter 2018 is shown in the table below. For fair value information related to the Company's long-term debt, see Note 9, Fair Value Measurements.

(Dollars in millions)
Current Portion
Long-term Portion
Total
Long-term debt as of December 31, 2017
$
19

$
11,790

$
11,809

2018 activity:
 
 
 
Long-term debt issued

2,000

2,000

Long-term debt repaid
(19
)

(19
)
Reclassifications
18

(18
)

Discount, premium and other activity

(18
)
(18
)
Long-term debt as of September 30, 2018
$
18

$
13,754

$
13,772