SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 6) RECENTLY ISSUED AND RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 8,989 | $ 8,465 | $ 8,259 | $ 8,164 |
| Cumulative Effect, Period of Adoption, Adjustment | ||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ (4) | $ 30 | ||
| ASU 2018-15 Intangibles Goodwill and Other - Internal-Use Software | ||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| New Accounting Pronouncement or Change in Accounting Principle, Description | In August 2018, the Financial Accounting Standards Board (FASB) issued a new standard that aligns the accounting for implementation costs incurred in a cloud computing arrangement accounted for as a service contract with the model currently used for internal use software costs. Under the new standard, costs that meet certain criteria will be required to be capitalized on the balance sheet and subsequently amortized over the term of the hosting arrangement. We adopted the standard on January 1, 2020, on a prospective basis as allowed by the standard. The adoption did not have a material impact on our Consolidated Financial Statements. | |||
| ASU 2016-13 Measurement of Credit Losses on Financial Instruments | ||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| New Accounting Pronouncement or Change in Accounting Principle, Description | On January 1, 2020, we adopted the new FASB standard related to accounting for credit losses on financial instruments. This standard introduced new guidance for accounting for credit losses on instruments including trade receivables and held-to-maturity debt securities. The standard required entities to record a cumulative effect adjustment to the statement of financial position. We recorded a net decrease to opening retained earnings of $4 million, net of tax, as of January 1, 2020, due to the cumulative impact of adopting the new standard. The impact to any individual financial statement line item as a result of applying the new standard, as compared to the old standard, was not material for the year ended December 31, 2020. | |||
| ASU 2020-04 Reference Rate Reform | ||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| New Accounting Pronouncement or Change in Accounting Principle, Description | In March 2020, the FASB amended its standard to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendment allows entities to elect not to apply certain modification accounting requirements to contracts affected by reference rate reform if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities can elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. These expedients also apply to interest rate locks. The guidance was effective upon issuance and expires after December 31, 2022. The amendment did not have an effect on our Consolidated Financial Statements at December 31, 2020. We are still evaluating which contracts will be impacted by reference rate reform, but the expedients will allow us to make permitted changes prior to the expiration of the amendments without resulting in a material impact to our Consolidated Financial Statements. |