INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2022

Intangible Assets, Net (Excluding Goodwill) [Abstract]

INTANGIBLE ASSETS DISCLOSURE

INTANGIBLE ASSETS

The following table provides information regarding the Corporation’s intangible assets:

Intangible Assets	Mar 31, 2022						Dec 31, 2021
In millions	Gross Carrying Amount		Accum Amort		Net		Gross Carrying Amount		Accum Amort		Net
Intangible assets with finite lives:
Developed technology	$	33	$	(33)	$	—	$	33	$	(33)	$	—
Software	83		(71)		12		83		(70)		13
Total intangible assets	$	116	$	(104)	$	12	$	116	$	(103)	$	13

Total estimated amortization expense for 2022 and the five succeeding fiscal years, including amounts expected to be capitalized, is as follows:

Estimated Amortization Expense
In millions
2022	$	5
2023	$	3
2024	$	2
2025	$	1
2026	$	1
2027	$	—