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DEBT - Tabular Disclosure - Notes and Debentures and Other (Details) - USD ($) $ in Millions	Dec. 31, 2020	Sep. 29, 2020	Sep. 18, 2020	Dec. 31, 2019
Debt
Other	$ 33			$ 30
Debt Issuance Costs, Net	(15)			(14)
Total long-term debt, current and non-current	2,795			2,773
Less: Current portion	3			2
Total long-term debt	2,792			2,771
3.500%, due April 1, 2021
Debt
Interest rate (as a percent)		3.50%
3.500%, due April 1, 2021 | Senior notes and debentures
Debt
Notes and debentures	$ 0			399
Interest rate (as a percent)	3.50%
5.950%, due March 15, 2022 | Senior notes and debentures
Debt
Notes and debentures	$ 326			326
Interest rate (as a percent)	5.95%
4.450%, due April 1, 2025 | Senior notes and debentures
Debt
Notes and debentures	$ 500			500
Interest rate (as a percent)	4.45%
4.375%, due April 1, 2026 | Senior notes and debentures
Debt
Notes and debentures	$ 498			498
Interest rate (as a percent)	4.375%
3.500%, due November 15, 2027 | Senior notes and debentures
Debt
Notes and debentures	$ 300			300
Interest rate (as a percent)	3.50%
7.750%, due August 1, 2029 | Senior notes and debentures
Debt
Notes and debentures	$ 235			235
Interest rate (as a percent)	7.75%
2.000%, due October 1, 2030
Debt
Interest rate (as a percent)			2.00%
2.000%, due October 1, 2030 | Senior notes and debentures
Debt
Notes and debentures	$ 300			0
Interest rate (as a percent)	2.00%
6.500%, due August 15, 2032 | Senior notes and debentures
Debt
Notes and debentures	$ 200			$ 200
Interest rate (as a percent)	6.50%
4.500%, due May 15, 2047
Debt
Interest rate (as a percent)	4.50%			4.50%
4.500%, due May 15, 2047 | Senior notes and debentures
Debt
Notes and debentures	$ 418			$ 299
Interest rate (as a percent)	4.50%

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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