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v3.19.1

Debt - Debt Activity (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 13, 2019 USD ($) | Mar. 12, 2019 USD ($) | May 30, 2019 USD ($) | Feb. 28, 2019 USD ($) | Nov. 29, 2018 USD ($) | Mar. 01, 2018 USD ($) | Nov. 30, 2017 USD ($) | Feb. 28, 2019 USD ($) | Mar. 01, 2018 USD ($) | Aug. 30, 2018 USD ($)
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | $ 2,634,000,000 |  |  |  | $ 2,634,000,000 |  | $ 859,000,000
Increase (Decrease) in Principal (conversions, settlements, and issuances) |  |  |  |  |  |  |  | 1,752,000,000 |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | 2,031,000,000 |  |
Increase (Decrease) in Cash (conversions, settlements, and issuance of debt) |  |  |  |  |  |  |  | 1,590,000,000 |  |
Decrease in Equity |  |  |  | (336,000,000) | $ (36,000,000) | $ (252,000,000) | $ (204,000,000) | (372,000,000) |  |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  | (83,000,000) |  | $ (23,000,000) |  | $ (69,000,000) | $ (218,000,000) |
Convertible Debt |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Term of Contract |  |  |  |  |  |  |  | 20 days |  |
Convertible Debt | 2032D Notes | Settled conversions |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Decrease in Principal |  |  |  |  |  |  |  | $ (10,000,000) |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | (9,000,000) |  |
Decrease in Cash |  |  |  |  |  |  |  | (35,000,000) |  |
Decrease in Equity |  |  |  |  |  |  |  | (28,000,000) |  |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  |  | 2,000,000 |  |
Convertible Debt | 2033F Notes | Settled conversions |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Decrease in Principal |  |  |  |  |  |  |  | (38,000,000) |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | (169,000,000) |  |
Decrease in Cash |  |  |  |  |  |  |  | (164,000,000) |  |
Decrease in Equity |  |  |  |  |  |  |  | (8,000,000) |  |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  |  | 13,000,000 |  |
Convertible Debt | 2043G Notes | Conversions not settled |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | 1,110,000,000 |  |  |  | 1,110,000,000 |  |
Decrease in Principal |  |  |  |  |  |  |  | 0 |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | 420,000,000 |  |
Decrease in Cash |  |  |  |  |  |  |  | 0 |  |
Decrease in Equity |  |  |  |  |  |  |  | (336,000,000) |  |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  |  | (84,000,000) |  |
Subsequent Event | Convertible Debt | 2043G Notes |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion rate (in shares per $1000 principal) |  | 34.2936 |  |  |  |  |  |  |  |
Principal amount used In conversion rate |  | $ 1,000 |  |  |  |  |  |  |  |
Decrease in Cash | $ (1,430,000,000) |  |  |  |  |  |  |  |  |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  | $ 316,000,000 |  |  |  |  |  |  |
Corporate Bonds | 2024 Notes |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | 0 |  |  |  | 0 |  | 0
Increase (Decrease) in Principal (conversions, settlements, and issuances) |  |  |  |  |  |  |  | 600,000,000 |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | 597,000,000 |  |
Increase in Cash |  |  |  |  |  |  |  | 597,000,000 |  |
Corporate Bonds | 2026 Notes |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | 0 |  |  |  | 0 |  | 0
Increase (Decrease) in Principal (conversions, settlements, and issuances) |  |  |  |  |  |  |  | 500,000,000 |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | 497,000,000 |  |
Increase in Cash |  |  |  |  |  |  |  | 497,000,000 |  |
Corporate Bonds | 2029 Notes |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | $ 0 |  |  |  | 0 |  | $ 0
Increase (Decrease) in Principal (conversions, settlements, and issuances) |  |  |  |  |  |  |  | 700,000,000 |  |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  |  | 695,000,000 |  |
Increase in Cash |  |  |  |  |  |  |  | $ 695,000,000 |  |

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