XML 101 R62.htm IDEA: XBRL DOCUMENT
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Debt - Recourse Debt (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2017 | May 31, 2016 | Jan. 31, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Mar. 01, 2017 | May 16, 2016 | Jan. 01, 2016
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes |  |  | $ 125 |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  |  |  | $ (49) | $ (16) | $ (44) | $ (12) |  |  |
LIBOR 2.00% Senior Notes Due in 2022 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  | (6) |  |  |  |
7.375% Senior Notes Due 2021 [Member] [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes | $ 276 |  |  |  |  |  |  |  |  |
8.0% Senior Notes Due 2020 [Domain] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes | $ 24 |  |  |  |  |  |  |  |  |
Senior Unsecured Note LIBOR plus 3% due 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  | $ (4) |  |  |  |  |  |  |  |
Senior Notes [Member] | 5.125% Senior Notes Due 2017 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Issued senior notes |  |  |  | 500 |  | 500 |  |  |  |
Senior Notes [Member] | LIBOR 2.00% Senior Notes Due in 2022 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes |  |  |  |  | 517 |  |  |  |  |
Issued senior notes |  |  |  | $ 525 |  | 525 |  |  |  |
Senior Notes [Member] | 8.0% Senior Notes Due 2020 [Domain] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes |  |  |  |  |  | 217 |  |  |  |
Senior Notes [Member] | 8.0% Senior Notes Due 2017 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes |  |  |  |  | $ 181 |  |  |  |  |
Senior Notes [Member] | 6.00% senior notes due 2026 [Domain] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  |  | 6.00% |
Issued senior notes |  |  |  |  |  |  |  |  | $ 500 |
Senior Notes [Member] | Senior Unsecured Note LIBOR plus 3% due 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Redeemed notes |  | $ 495 |  |  |  | $ 240 |  |  |  |
Unsecured Debt [Member] | 7.375% Senior Notes Due 2021 [Member] [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  | 7.375% |  | 7.375%
Unsecured Debt [Member] | 4.875% Senior Notes Due 2023 [Member] [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  |  |  | 4.875%
Gain (loss) on extinguishment of debt |  |  |  |  |  |  | $ 7 |  |  |
Unsecured Debt [Member] | 5.5% Senior Notes Due 2024 [Member] [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  |  |  | 5.50%
Unsecured Debt [Member] | 5.5% Senior Notes Due 2025 [Member] [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  |  |  | 5.50%
Unsecured Debt [Member] | 8.0% Senior Notes Due 2020 [Domain] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  | 8.00% |  | 8.00% |  | 8.00% |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  | $ (47) |  |  |  |
Unsecured Debt [Member] | 8.0% Senior Notes Due 2017 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  | 8.00% |  | 8.00% |  |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  | (16) |  |  |  |
Unsecured Debt [Member] | Senior Unsecured Note LIBOR plus 3% due 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  | $ (36) |  |  |  |
Unsecured Debt [Member] | 5.125% Senior Notes Due 2027 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  | 5.125% |  |
London Interbank Offered Rate (LIBOR) [Member] | LIBOR 2.00% Senior Notes Due in 2022 [Member] | Recourse Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  | 2.00% |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Senior Unsecured Note LIBOR plus 3% due 2019 [Member] | Recourse Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  | 3.00% |  |  |  |

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