FINANCING ARRANGEMENTS - Aggregate Maturities of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Remainder of 2021	$ 0
2022	0
2023	0
2024	2,091
2025	10,632
2026	1,500
Thereafter	9,762
Total debt obligations	23,985	$ 24,185
Unamortized premiums, discounts and issuance costs	(247)
Total long-term debt and other	$ 23,738	$ 23,925

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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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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