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v3.20.1

Debt (Issued) (Details) $ / shares in Units, $ in Millions |  |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 17, 2020 USD ($) | Feb. 01, 2019 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2020 USD ($) $ / shares | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($)
Debt |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  | $ 743 | $ 540 |
Aggregate principal amount outstanding |  |  |  | $ 9,246 |  | $ 9,361
Five-Year Revolving Credit Facility |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum |  |  | $ 1,000 |  |  | 1,300
Commitment fee percentage at period end |  |  |  | 0.625% |  |
Credit facility amount outstanding |  |  |  | $ 0 |  |
Letters of credit issued and outstanding |  |  |  | 7 |  |
Credit facility available borrowing capacity |  |  |  | $ 1,300 |  |
Five-Year Revolving Credit Facility | Minimum |  |  |  |  |  |
Debt |  |  |  |  |  |
Commitment fee percentage at period end |  |  | 0.375% |  |  |
Five-Year Revolving Credit Facility | Maximum |  |  |  |  |  |
Debt |  |  |  |  |  |
Commitment fee percentage at period end |  |  | 1.00% |  |  |
Five-Year Revolving Credit Facility | Adjusted LIBOR |  |  |  |  |  |
Debt |  |  |  |  |  |
Spread on variable rate basis (as a percent) |  |  |  | 2.875% |  |
Percentage reduction to the calculated variable rate |  |  | 1.00% |  |  |
Five-Year Revolving Credit Facility | Adjusted LIBOR | Minimum |  |  |  |  |  |
Debt |  |  |  |  |  |
Spread on variable rate basis (as a percent) |  |  | 2.625% |  |  |
Five-Year Revolving Credit Facility | Adjusted LIBOR | Maximum |  |  |  |  |  |
Debt |  |  |  |  |  |
Spread on variable rate basis (as a percent) |  |  | 3.375% |  |  |
6.375% Senior Notes due December 2021 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage |  |  |  | 6.375% |  |
Interest rate, as adjusted (as a percent) |  |  |  | 8.375% |  |
Aggregate principal amount outstanding |  |  |  | $ 184 |  | 222
3.80% Senior Notes due October 2022 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage |  |  |  | 3.80% |  |
Interest rate, as adjusted (as a percent) |  |  |  | 5.80% |  |
Aggregate principal amount outstanding |  |  |  | $ 187 |  | 190
7.35% Senior Notes due December 2041 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage |  |  |  | 7.35% |  |
Interest rate, as adjusted (as a percent) |  |  |  | 9.35% |  |
Aggregate principal amount outstanding |  |  |  | $ 300 |  | 300
0.50% Exchangeable Bonds due January 2023 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage |  |  |  | 0.50% |  |
Aggregate principal amount outstanding |  |  |  | $ 863 |  | 863
Debt conversion ratio |  |  |  | 0.09729756 |  |
Debt conversion (in dollars per share) | $ / shares |  |  |  | $ 10.28 |  |
8.00% Senior Unsecured Notes due February 2027 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage | 8.00% |  |  | 8.00% |  |
Debt instrument face value | $ 750 |  |  |  |  |
Proceeds from issuance of debt | $ 743 |  |  |  |  |
Redemption price of debt instrument (as a percent) | 100.00% |  |  |  |  |
Aggregate principal amount outstanding |  |  |  | $ 750 |  |
6.875% Senior Secured Notes due February 2027 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument interest rate stated percentage |  | 6.875% |  | 6.875% |  |
Debt instrument face value |  | $ 550 |  |  |  |
Proceeds from issuance of debt |  | $ 539 |  |  |  |
Redemption price of debt instrument (as a percent) |  | 100.00% |  |  |  |
Aggregate principal amount outstanding |  |  |  | $ 550 |  | $ 550
Restricted cash and cash equivalents |  | $ 19 |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a 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. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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