Fair Value - Schedule of Fixed-Rate Senior Notes, Fair Value (Details) - Senior Notes - USD ($)	Sep. 15, 2023	Sep. 30, 2023
Senior Notes Due 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate	3.65%
Repayments of debt	$ 700,000,000.0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed rate senior notes carrying amount		$ 6,000,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due in 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 500,000,000
Interest rate		2.35%
Fair value		$ 484,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 300,000,000
Interest rate		3.85%
Fair value		$ 289,000,000
Fair Value, Inputs, Level 2 \| Senior Unsecured Notes Due September 15, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 700,000,000
Interest rate		1.00%
Fair value		$ 640,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 700,000,000
Interest rate		3.80%
Fair value		$ 663,000,000
Fair Value, Inputs, Level 2 \| Senior Unsecured Notes Due September 15, 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 700,000,000
Interest rate		1.40%
Fair value		$ 599,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 800,000,000
Interest rate		4.20%
Fair value		$ 752,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due in 2029
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 700,000,000
Interest rate		2.95%
Fair value		$ 607,000,000
Fair Value, Inputs, Level 2 \| Senior Notes Due June 2030
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 600,000,000
Interest rate		2.00%
Fair value		$ 474,000,000
Fair Value, Inputs, Level 2 \| Senior Unsecured Notes Due February 15, 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount		$ 1,000,000,000
Interest rate		1.75%
Fair value		$ 759,000,000

Face (par) amount of debt instrument at time of issuance.

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