v3.7.0.1
Debt (Tables)
3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Schedule of Debt
DEBT BALANCE, NET OF UNAMORTIZED ISSUANCE COSTS (in millions)

 
March 31,
2017
 
December 31, 2016
Total debt
$
3,819

 
$
4,109

Unamortized issuance costs
(53
)
 
(55
)
Current maturities
(1
)
 
(1
)
Debt, Net of Current Maturities and Unamortized Issuance Costs
$
3,765

 
$
4,053



Line of Credit Facility [Line Items]  
Schedule of Line of Credit Facilities [Table Text Block]
AVAILABLE CAPACITY UNDER CREDIT FACILITIES (in millions)

 
Total
Capacity
 
Amount Borrowed as of March 31, 2017
 
Outstanding
Letters of Credit
 
Available Capacity
 
Expiration
TLLP Revolving Credit Facility (a)
$
600

 
$
40

 
$

 
$
560

 
January 29, 2021
TLLP Dropdown Credit Facility
1,000

 

 

 
1,000

 
January 29, 2021
Total Credit Facilities (b)
$
1,600

 
$
40

 
$

 
$
1,560

 
 


(a)    The weighted average interest rate for borrowings under our Revolving Credit Facility was 3.23% at March 31, 2017.
(b)
We are allowed to request that the loan availability be increased up to an aggregate of $2.1 billion, subject to receiving increased commitments from the lenders.