Goodwill and Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 2,085	$ 1,957	$ 2,439
Finite-Lived Intangible Assets, Amortization Expense, 2024	2,193
Finite-Lived Intangible Assets, Amortization Expense, 2025	2,079
Finite-Lived Intangible Assets, Amortization Expense, 2026	2,005
Finite-Lived Intangible Assets, Amortization Expense, 2027	1,887
Finite-Lived Intangible Assets, Amortization Expense, 2028	$ 1,811