Equity Method Investments (Summarized Financial Information For DIRECTV and Our Other Equity Method Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Operating revenues	$ 122,336	$ 122,428	$ 120,741
Net income (loss)	12,253	15,623	(7,055)
Assets
Assets, Current	31,168	36,458
Liabilities and Stockholders’ Equity
Liabilities, Current	46,872	51,127
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Income Statement [Abstract]
Operating revenues	20,003	22,938	25,794
Operations income	2,343	2,873	3,175
Net income (loss)	1,811	2,393	$ 2,581
Assets
Assets, Current	2,857	3,058
Assets, Noncurrent	9,496	12,203
Liabilities and Stockholders’ Equity
Liabilities, Current	5,312	5,148
Liabilities, Noncurrent	$ 7,389	$ 8,193