FINANCING ARRANGEMENTS - Aggregate Maturities of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
April through December 2019	$ 182
2020	303
2021	303
2022	1,553
2023	5,436
2024	2,303
Thereafter	14,394
Total debt obligations	24,474	$ 24,632
Unamortized premiums, discounts and issuance costs	(293)
Total long-term debt and other	$ 24,181	$ 24,305

Long-Term Debt, Maturities, Repayments Of Principal In Year Six

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Long-Term Debt, Maturities, Repayments Of Principal, Thereafter

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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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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