SHORT-TERM DEBT	12 Months Ended
Dec. 31, 2016
Debt Disclosure [Abstract]
Short-Term Debt	SHORT-TERM DEBT As of December 31, 2016 and 2015, the Company had $513 million and $584 million, respectively, in commercial paper outstanding with weighted average interest rates of approximately 0.9% and 0.5%, respectively, all of which is related to AB. AB has a $1,000 million committed, unsecured senior revolving credit facility (“AB Credit Facility”) with a group of commercial banks and other lenders. The AB Credit Facility provides for possible increases in the principal amount by up to an aggregate incremental amount of $250 million, any such increase being subject to the consent of the affected lenders. The AB Credit Facility is available for AB and SCB LLC’s business purposes, including the support of AB’s $1,000 million commercial paper program. Both AB and SCB LLC can draw directly under the AB Credit Facility and management may draw on the AB Credit Facility from time to time. AB has agreed to guarantee the obligations of SCB LLC under the AB Credit Facility. The AB Credit Facility contains affirmative, negative and financial covenants, which are customary for facilities of this type, including, among other things, restrictions on dispositions of assets, restrictions on liens, a minimum interest coverage ratio and a maximum leverage ratio. As of December 31, 2016, AB and SCB LLC were in compliance with these covenants. The AB Credit Facility also includes customary events of default (with customary grace periods, as applicable), including provisions under which, upon the occurrence of an event of default, all outstanding loans may be accelerated and/or lender’s commitments may be terminated. Also, under such provisions, upon the occurrence of certain insolvency- or bankruptcy-related events of default, all amounts payable under the AB Credit Facility automatically would become immediately due and payable, and the lender’s commitments automatically would terminate. On October 22, 2014, as part of an amendment and restatement, the maturity date of the AB Credit Facility was extended from January 17, 2017 to October 22, 2019. There were no other significant changes included in the amendment. On December 1, 2016, AB entered into a $200 million, unsecured 364-day senior revolving credit facility (the “AB Revolver”) with a leading international bank and the other lending institutions that may be party thereto. The AB Revolver is available for AB's and SCB LLC's business purposes, including the provision of additional liquidity to meet funding requirements primarily related to SCB LLC's operations. Both AB and SCB LLC can draw directly under the AB Revolver and management expects to draw on the AB Revolver from time to time. AB has agreed to guarantee the obligations of SCB LLC under the AB Revolver. The AB Revolver contains affirmative, negative and financial covenants which are identical to those of the AB Credit Facility. As of December 31, 2016, AB had no amounts outstanding under the AB Revolver. As of December 31, 2016 and 2015, AB and SCB LLC had no amounts outstanding under the AB Credit Facility. During 2016 and 2015, AB and SCB LLC did not draw upon the AB Credit Facility. In addition, SCB LLC has four uncommitted lines of credit with three financial institutions. Three of these lines of credit permit SCB LLC to borrow up to an aggregate of approximately $225 million, with AB named as an additional borrower, while one line has no stated limit. As of December 31, 2016 and 2015, SCB LLC had no bank loans outstanding.

SHORT-TERM DEBT

As of December 31, 2016 and 2015, the Company had $513 million and $584 million, respectively, in commercial paper outstanding with weighted average interest rates of approximately 0.9% and 0.5%, respectively, all of which is related to AB.

AB has a $1,000 million committed, unsecured senior revolving credit facility (“AB Credit Facility”) with a group of commercial banks and other lenders. The AB Credit Facility provides for possible increases in the principal amount by up to an aggregate incremental amount of $250 million, any such increase being subject to the consent of the affected lenders. The AB Credit Facility is available for AB and SCB LLC’s business purposes, including the support of AB’s $1,000 million commercial paper program. Both AB and SCB LLC can draw directly under the AB Credit Facility and management may draw on the AB Credit Facility from time to time. AB has agreed to guarantee the obligations of SCB LLC under the AB Credit Facility.

The AB Credit Facility contains affirmative, negative and financial covenants, which are customary for facilities of this type, including, among other things, restrictions on dispositions of assets, restrictions on liens, a minimum interest coverage ratio and a maximum leverage ratio. As of December 31, 2016, AB and SCB LLC were in compliance with these covenants. The AB Credit Facility also includes customary events of default (with customary grace periods, as applicable), including provisions under which, upon the occurrence of an event of default, all outstanding loans may be accelerated and/or lender’s commitments may be terminated. Also, under such provisions, upon the occurrence of certain insolvency- or bankruptcy-related events of default, all amounts payable under the AB Credit Facility automatically would become immediately due and payable, and the lender’s commitments automatically would terminate.

On October 22, 2014, as part of an amendment and restatement, the maturity date of the AB Credit Facility was extended from January 17, 2017 to October 22, 2019. There were no other significant changes included in the amendment.

On December 1, 2016, AB entered into a $200 million, unsecured 364-day senior revolving credit facility (the “AB Revolver”) with a leading international bank and the other lending institutions that may be party thereto. The AB Revolver is available for AB's and SCB LLC's business purposes, including the provision of additional liquidity to meet funding requirements primarily related to SCB LLC's operations. Both AB and SCB LLC can draw directly under the AB Revolver and management expects to draw on the AB Revolver from time to time. AB has agreed to guarantee the obligations of SCB LLC under the AB Revolver. The AB Revolver contains affirmative, negative and financial covenants which are identical to those of the AB Credit Facility. As of December 31, 2016, AB had no amounts outstanding under the AB Revolver.

As of December 31, 2016 and 2015, AB and SCB LLC had no amounts outstanding under the AB Credit Facility. During 2016 and 2015, AB and SCB LLC did not draw upon the AB Credit Facility.

In addition, SCB LLC has four uncommitted lines of credit with three financial institutions. Three of these lines of credit permit SCB LLC to borrow up to an aggregate of approximately $225 million, with AB named as an additional borrower, while one line has no stated limit. As of December 31, 2016 and 2015, SCB LLC had no bank loans outstanding.