Fair Value of Financial Instruments - Schedule of Fixed-Rate Senior Notes, Fair Value (Details) - Senior Notes | Sep. 30, 2022 USD ($) |
$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% |
$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% |
$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% |
$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% |
$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% |
$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% |
$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% |
$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% |
$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% |
$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% |
Fair Value, Inputs, Level 2 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed rate senior notes carrying amount | $ 6,700,000,000 |
Fair Value, Inputs, Level 2 | $700 3.650% senior notes due 2023 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 691,000,000 |
Fair Value, Inputs, Level 2 | $500 2.350% senior notes due 2024 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 476,000,000 |
Fair Value, Inputs, Level 2 | $300 3.850% senior notes due 2025 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 287,000,000 |
Fair Value, Inputs, Level 2 | $700 1.000% senior notes due 2025 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 621,000,000 |
Fair Value, Inputs, Level 2 | $700 3.800% senior notes due 2026 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 662,000,000 |
Fair Value, Inputs, Level 2 | $700 1.400% senior notes due 2027 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 579,000,000 |
Fair Value, Inputs, Level 2 | $800 4.200% senior notes due 2028 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 748,000,000 |
Fair Value, Inputs, Level 2 | $700 2.950% senior notes due 2029 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 590,000,000 |
Fair Value, Inputs, Level 2 | $600 2.000% senior notes due 2030 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | 461,000,000 |
Fair Value, Inputs, Level 2 | $1,000 1.750% senior notes due 2031 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Long-term debt, fair value | $ 740,000,000 |