RETIREMENT PLANS - Cash Flows (Details) - USD ($) $ in Millions	1 Months Ended
Sep. 30, 2017	Dec. 31, 2018
Pension \| U.S.
Estimate of benefits expected to be paid for company's pension and postretirement health care benefit plans:
Contributions to plan	$ 80
Estimated contribution to pension benefit plan during 2019		$ 120
Pension \| International
Estimate of benefits expected to be paid for company's pension and postretirement health care benefit plans:
Estimated contribution to pension benefit plan during 2019		48
Pension and Postretirement Health Care Benefit Plans
Estimate of benefits expected to be paid for company's pension and postretirement health care benefit plans:
2019		203
2020		223
2021		234
2022		243
2023		238
2024-2028		$ 1,233

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

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- Definition

Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

+ References

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