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Fair Value of Financial Instruments (Details) - Senior Notes - Fair Value, Inputs, Level 2 | Jun. 30, 2021 USD ($)
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Fixed rate senior notes carrying amount | $ 8,000,000,000
$500 2.800% senior notes due 2021 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 500,000,000
Fixed interest rate (as a percent) | 2.80%
Long-term debt, fair value | $ 505,000,000
$500 3.125% senior notes due 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 500,000,000
Fixed interest rate (as a percent) | 3.125%
Long-term debt, fair value | $ 515,000,000
$300 0.450% senior notes due 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 300,000,000
Fixed interest rate (as a percent) | 0.45%
Long-term debt, fair value | $ 300,000,000
$700 3.650% senior notes due 2023 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 700,000,000
Fixed interest rate (as a percent) | 3.65%
Long-term debt, fair value | $ 747,000,000
$500 2.350% senior notes due 2024 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 500,000,000
Fixed interest rate (as a percent) | 2.35%
Long-term debt, fair value | $ 524,000,000
$300 3.850% senior notes due 2025 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 300,000,000
Fixed interest rate (as a percent) | 3.85%
Long-term debt, fair value | $ 333,000,000
$700 1.000% senior notes due 2025 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 700,000,000
Fixed interest rate (as a percent) | 1.00%
Long-term debt, fair value | $ 695,000,000
$700 3.800% senior notes due 2026 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 700,000,000
Fixed interest rate (as a percent) | 3.80%
Long-term debt, fair value | $ 782,000,000
$700 1.400% senior notes due 2027 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 700,000,000
Fixed interest rate (as a percent) | 1.40%
Long-term debt, fair value | $ 689,000,000
$800 4.200% senior notes due 2028 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 800,000,000
Fixed interest rate (as a percent) | 4.20%
Long-term debt, fair value | $ 920,000,000
$700 2.950% senior notes due 2029 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 700,000,000
Fixed interest rate (as a percent) | 2.95%
Long-term debt, fair value | $ 748,000,000
$600 2.000% senior notes due 2030 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 600,000,000
Fixed interest rate (as a percent) | 2.00%
Long-term debt, fair value | $ 591,000,000
$1,000 1.750% senior notes due 2031 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Face amount of debt | $ 1,000,000,000
Fixed interest rate (as a percent) | 1.75%
Long-term debt, fair value | $ 960,000,000

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