SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION (Note)

9 Months Ended

Sep. 30, 2020

Disclosure Text Block Supplement [Abstract]

Supplemental Financial Statement Information [Note Text Block]

Temporary Investments 

Temporary investments with an original maturity of three months or less and money market funds with greater than three month maturities but with the right to redeem without notices are treated as cash equivalents and are stated at cost. Temporary investments totaled $450 million and $335 million at September 30, 2020 and December 31, 2019, respectively.

Accounts and Notes Receivable

In millions	September 30, 2020		December 31, 2019
Accounts and notes receivable, net:
Trade	$	2,789	$	3,020
Other	245		260
Total	$	3,034	$	3,280

The allowance for expected credit losses was $86 million at September 30, 2020 and the allowance for doubtful accounts was $73 million at December 31, 2019. Based on the Company's accounting estimates and the facts and circumstances available as of the reporting date, we believe our allowance for expected credit losses is adequate. While we have taken into account certain impacts of COVID-19 in connection with our estimate of the allowance for expected credit losses, it is possible that additional expected credit losses in excess of such allowance could occur if additional containment and mitigation measures are required or negative economic conditions persist or deteriorate as a result of of COVID-19.

Inventories 

In millions	September 30, 2020		December 31, 2019
Raw materials	$	257	$	298
Finished pulp, paper and packaging	1,023		1,192
Operating supplies	638		659
Other	89		59
Total	$	2,007	$	2,208

Plants, Properties and Equipment  

Accumulated depreciation was $21.0 billion and $20.5 billion at September 30, 2020 and December 31, 2019, respectively. Depreciation expense was $300 million and $305 million for the three months ended September 30, 2020 and 2019, respectively, and $902 million for both the nine months ended September 30, 2020 and 2019.

Non-cash additions to plants, property and equipment included within accounts payable were $33 million and $164 million at September 30, 2020 and December 31, 2019, respectively.

Amounts invested in capital projects in the accompanying condensed consolidated statement of cash flows are presented net of insurance recoveries of $40 million received during the nine months ended September 30, 2020. There were no insurance recoveries received during the nine months ended September 30, 2019.

Interest

Interest payments made during the nine months ended September 30, 2020 and 2019 were $520 million and $591 million, respectively.

Amounts related to interest were as follows: 

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions	2020		2019		2020		2019
Interest expense	$	148	$	177	$	467	$	538
Interest income	36		54		122		160
Capitalized interest costs	9		7		27		21

Asset Retirement Obligations

The Company had recorded liabilities of $97 million and $96 million related to asset retirement obligations at September 30, 2020 and December 31, 2019, respectively.