Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	debit
Period Type:	duration

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Share Repurchase Program (Details) - USD ($) shares in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Aug. 04, 2020	Aug. 09, 2018
Class of Stock [Line Items]
Stock repurchase program, additional authorized repurchase amount			$ 500,000,000	$ 1,000,000,000
Stock repurchase program, remaining authorized repurchase amount	$ 880,000,000	$ 880,000,000
Class A Common Stock
Class of Stock [Line Items]
Treasury stock, shares acquired (in shares)	4	19
Treasury stock, value acquired	$ 82,000,000	$ 343,000,000