v3.7.0.1

Debt (Tables) | 3 Months Ended
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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.

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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