| **INCOME TAXES**                     | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|--------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Income Tax Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| INCOME TAXES                         | INCOME TAXESIncome tax provisions of $134.6 million and $200.0 million were recorded for the three-month and six-month periods endedJune 30, 2016, respectively, compared to $125.1 million and $162.0 million for the corresponding periods in 2015. This resulted in effective tax rates of 34.7% and 37.2% for the three-month and six-month periods endedJune 30, 2016, respectively, compared to 31.0% and 28.6% for the corresponding periods in 2015. The Company recognized discrete income tax provisions of $3.6 million and $6.6 million, respectively, for the three-month and six-month periods endedJune 30, 2016 and discrete income tax benefits of $10.2 million and $32.2 million, respectively, for the three-month and six-month periods endedJune 30, 2015, which resulted in the higher effective tax rates for the three-month and six-month periods endedJune 30, 2016.NOTE 12. INCOME TAXES (continued)The Company is subject to the income tax laws of the U.S., its states and municipalities and certain foreign countries. These tax laws are complex and are potentially subject to different interpretations by the taxpayer and the relevant governmental taxing authorities. In establishing a provision for income tax expense, the Company must make judgments and interpretations about the application of these inherently complex tax laws.Actual income taxes paid may vary from estimates depending upon changes in income tax laws, actual results of operations, and the final audit of tax returns by taxing authorities. Tax assessments may arise several years after tax returns have been filed. The Company reviews its tax balances quarterly and, as new information becomes available, the balances are adjusted as appropriate. The Company is subject to ongoing tax examinations and assessments in various jurisdictions. The Company has a lawsuit pending against the United States in Federal District Court in Massachusetts relating to the proper tax consequences of two financing transactions with an international bank through which the Company borrowed $1.2 billion. As a result of these financing transactions, the Company paid foreign taxes of $264.0 million during the years 2003 through 2007 and claimed a corresponding foreign tax credit for foreign taxes paid during those years, which the Internal Revenue Service ("IRS") disallowed. The IRS also disallowed the Company's deductions for interest expense and transaction costs, totaling $74.6 million in tax liability, and assessed penalties and interest totaling approximately $92.5 million. The Company has paid the taxes, penalties and interest associated with the IRS adjustments for all tax years, and the lawsuit will determine whether the Company is entitled to a refund of the amounts paid. The Company has recorded a receivable in the Other assets line of the Condensed Consolidated Balance Sheets for the amount of these payments, less a tax reserve of $230.1 million, as of June 30, 2016. On November 13, 2015, the Federal District Court issued a written opinion in favor of the Company on all contested issues, and in a judgment issued on January 13, 2016, ordered amounts assessed by the IRS for the years 2003 through 2005 to be refunded to the Company. On March 11, 2016, the IRS filed a notice of appeal. The appeal was heard in the First Circuit on November 9, 2016.In 2013, two different federal courts decided cases involving similar financing structures entered into by the Bank of New York Mellon Corp. ("BNY Mellon") and BB&T Corp. ("BB&T") in favor of the IRS. BNY Mellon and BB&T each appealed. On May 14, 2015, the Court of Appeals for the Federal Circuit decided BB&T's appeal by affirming the trial court's decision to disallow BB&T's foreign tax credits and to allow penalties, but reversed the trial court and allowed BB&T's entitlement to interest deductions. On September 9, 2015, the Court of Appeals for the Second Circuit upheld the trial court's decision in BNY Mellon's case, allowing BNY Mellon to claim interest deductions, but disallowing BNY Mellon's claimed foreign tax credits. On September 29, 2015, BB&T filed a petition requesting the U.S. Supreme Court to hear its appeal of the Federal Circuit Court’s decision. BNY Mellon filed a petition requesting the U.S. Supreme Court hear its appeal of the Second Circuit’s decision on November 3, 2015. On March 7, 2016, the U.S. Supreme Court denied BB&T's and BNY Mellon's petitions.The Company has not changed its reserve position as of June 30, 2016, and remains confident in the legal merits of its position and believes its reserve amount adequately provides for potential exposure to the IRS related to these items. Over the next 12 months, it is reasonably possible that changes in the reserve for uncertain tax positions could range from a decrease of $230.1 million to an increase of $201.9 million.With few exceptions, the Company is no longer subject to federal, state and non-US income tax examinations by tax authorities for years prior to 2003. |

| X                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - References
No definition available.
+ Details**Name:**us-gaap_IncomeTaxDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319
+ Details**Name:**us-gaap_IncomeTaxDisclosureTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |