Fair Value - Schedule of Fixed-Rate Senior Notes, Fair Value (Details) - Fair Value, Inputs, Level 2 - Senior Notes	Jun. 30, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed rate senior notes carrying amount	$ 6,700,000,000
Senior Notes Due 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	$ 700,000,000
Interest rate (as a percent)	3.65%
Fair value	$ 697,000,000
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 (as a percent)	2.35%
Fair value	$ 481,000,000
Senior Notes Due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	$ 300,000,000
Interest rate (as a percent)	3.85%
Fair value	$ 288,000,000
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 (as a percent)	1.00%
Fair value	$ 637,000,000
Senior Notes Due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	$ 700,000,000
Interest rate (as a percent)	3.80%
Fair value	$ 669,000,000
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 (as a percent)	1.40%
Fair value	$ 603,000,000
Senior Notes Due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount	$ 800,000,000
Interest rate (as a percent)	4.20%
Fair value	$ 768,000,000
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 (as a percent)	2.95%
Fair value	$ 619,000,000
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 (as a percent)	2.00%
Fair value	$ 489,000,000
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 (as a percent)	1.75%
Fair value	$ 791,000,000