BORROWINGS - Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Borrowings
Financing lease obligations	$ 219	$ 222
Total	3,242	3,251
Less: Unamortized discount	5	5
Less: Unamortized debt issuance costs	15	15
Less: current maturities of long-term debt	96	103
Total	$ 3,127	3,128
Finance lease obligations, interest rate (as a percent)	1.79%
Unsecured floating-rate term loan
Borrowings
Long-term debt	$ 500	500
Debt instrument, weighted-average interest rate (as a percent)	1.37%
Unsecured floating-rate term loan \| LIBOR
Borrowings
Debt instrument, weighted-average interest rate (as a percent)	1.125%
Commercial loan agreement
Borrowings
Long-term debt	$ 123	129
Debt instrument, weighted-average interest rate (as a percent)	3.00%
Unsecured senior notes due 2026
Borrowings
Long-term debt	$ 700	700
Debt instrument, weighted-average interest rate (as a percent)	2.05%
Unsecured senior notes due 2028
Borrowings
Long-term debt	$ 500	500
Debt instrument, weighted-average interest rate (as a percent)	2.70%
Unsecured senior notes due 2031
Borrowings
Long-term debt	$ 650	650
Debt instrument, weighted-average interest rate (as a percent)	3.15%
Unsecured senior notes due 2041
Borrowings
Long-term debt	$ 550	$ 550
Debt instrument, weighted-average interest rate (as a percent)	4.10%

It represents the amount of debt excluding finance lease obligations.

No definition available.

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- Definition

Represents the weighted average interest rate on finance lease.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 842
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+ Details

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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

+ References

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Amount of long-term debt and lease obligation, classified as current.

+ References

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- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

+ References

No definition available.

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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

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