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Borrowings - Narrative (Details) |  | 1 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) | Mar. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |
Proceeds from debt | $ 3,950,000,000 |
Payments for derivative instruments |  | $ 7,000,000
Loss on net cash flow hedges |  | 5,000,000
Senior Notes | 3.625% senior notes due April 2027 |  |
Debt Instrument [Line Items] |  |
Face amount of debt | $ 750,000,000 | $ 750,000,000
Debt interest rate | 3.625% | 3.625%
Senior Notes | 3.75% senior notes due April 2030 |  |
Debt Instrument [Line Items] |  |
Face amount of debt | $ 1,500,000,000 | $ 1,500,000,000
Debt interest rate | 3.75% | 3.75%
Senior Notes | 4.125% senior notes due April 2040 |  |
Debt Instrument [Line Items] |  |
Face amount of debt | $ 1,000,000,000.0 | $ 1,000,000,000.0
Debt interest rate | 4.125% | 4.125%
Senior Notes | 4.25% senior notes due April 2050 |  |
Debt Instrument [Line Items] |  |
Face amount of debt | $ 750,000,000 | $ 750,000,000
Debt interest rate | 4.25% | 4.25%

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