DEBT (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of short-term borrowings

Short-Term Borrowings

	December 31,
	2017				2016
In millions of dollars	Balance		Weighted average coupon		Balance		Weighted average coupon
Commercial paper	$	9,940	1.28	%	$	9,989	0.79	%
Other borrowings(1)	34,512		1.62		20,712		1.39
Total	$	44,452			$	30,701

(1) Includes borrowings from the Federal Home Loan Banks and other market participants. At December 31, 2017 and December 31, 2016, collateralized short-term advances from the Federal Home Loan Banks were $23.8 billion and $12.0 billion, respectively.

Schedule of long-term debt

Long-Term Debt

				Balances at December 31,
In millions of dollars	Weighted average coupon		Maturities	2017		2016
Citigroup Inc.(1)
Senior debt	4.15	%	2018-2098	$	123,488	$	118,881
Subordinated debt(2)	4.48		2018-2046	26,963		26,758
Trust preferred     securities	6.90		2036-2067	1,712		1,694
Bank(3)
Senior debt	2.06		2018-2049	65,856		49,454
Broker-dealer(4)
Senior debt	3.44		2018-2057	18,666		9,387
Subordinated debt(2)	5.37		2021-2037	24		4
Total	3.57	%		$	236,709	$	206,178
Senior debt				$	208,010	$	177,722
Subordinated debt(2)				26,987		26,762
Trust preferred     securities				1,712		1,694
Total				$	236,709	$	206,178

(1) Represents the parent holding company.

(2) Includes notes that are subordinated within certain countries, regions or subsidiaries.

(3) Represents Citibank entities as well as other bank entities. At December 31, 2017 and December 31, 2016, collateralized long-term advances from the Federal Home Loan Banks were $19.3 billion and $21.6 billion, respectively.

(4) Represents broker-dealer and other non-bank subsidiaries that are consolidated into Citigroup Inc., the parent holding company.

Aggregate annual maturities of long-term debt obligations

Aggregate annual maturities of long-term debt obligations (based on final maturity dates) including trust preferred securities are as follows:

In millions of dollars	2018		2019		2020		2021		2022		Thereafter		Total
Citigroup Inc.	$	20,050	$	16,656	$	9,565	$	15,499	$	9,627	$	80,766	$	152,163
Bank	29,270		17,245		10,302		4,077		1,471		3,491		65,856
Broker-dealer	4,158		2,388		3,321		1,443		1,266		6,114		18,690
Total	$	53,478	$	36,289	$	23,188	$	21,019	$	12,364	$	90,371	$	236,709

Summary of outstanding trust preferred securities

The following table summarizes the Company’s outstanding trust preferred securities at December 31, 2017:

								Junior subordinated debentures owned by trust
Trust	Issuance date	Securities issued	Liquidation value(1)		Coupon rate(2)		Common shares issued to parent	Amount		Maturity	Redeemable by issuer beginning
In millions of dollars, except share amounts
Citigroup Capital III	Dec. 1996	194,053	$	194	7.625	%	6,003	$	200	Dec. 1, 2036	Not redeemable
Citigroup Capital XIII	Sept. 2010	89,840,000	2,246		3 mo LIBOR + 637 bps		1,000	2,246		Oct. 30, 2040	Oct. 30, 2015
Citigroup Capital XVIII	June 2007	99,901	135		3 mo LIBOR + 88.75 bps		50	135		June 28, 2067	June 28, 2017
Total obligated			$	2,575				$	2,581

Note: Distributions on the trust preferred securities and interest on the subordinated debentures are payable semiannually for Citigroup Capital III and Citigroup Capital XVIII and quarterly for Citigroup Capital XIII.

(1) Represents the notional value received by investors from the trusts at the time of issuance.

(2) In each case, the coupon rate on the subordinated debentures is the same as that on the trust preferred securities.