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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

Changes in goodwill for the years ended December 31, 2020, 2019 and 2018 are as follows:

(in millions)			Amount
Balance at December 31, 2018			$	289
Additions			—
Balance at December 31, 2019			$	289
Additions (1)			5
Balance at December 31, 2020			$	294

(1) Refer to Note 17 for more details.

Summary of Goodwill and Other Intangible Assets

The following summarizes goodwill and other intangible assets:

						December 31, 2020									December 31, 2019
(in millions)			Weighted Average Amortization Period			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Goodwill						$	294		$	—		$	294		$	289		$	—		$	289
Amortizable intangibles:
Customer contact lists			10 years			98			(80)			18			90			(76)			14
Developed technology			5 years			—			—			—			5			(4)			1
Total						$	98		$	(80)		$	18		$	95		$	(80)		$	15

Expected Expense Related to Intangibles Amortization in Future Periods

Expense related to intangibles amortization in future periods as of December 31, 2020 is expected to be as follows:

Year ending December 31:			Amount (in millions)
2021			$	5
2022			5
2023			3
2024			1
2025			1
2026 and thereafter			3
Total			$	18

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