Income Taxes (Components Of Deferred Tax Liabilities (Assets)) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Depreciation and amortization	$ 36,531	$ 37,931
Licenses and nonamortizable intangibles	20,660	20,049
Lease right-of-use assets	5,103	5,100
Lease liabilities	(5,107)	(5,146)
Employee benefits	(3,017)	(2,970)
Deferred fulfillment costs	1,788	1,941
Equity in partnership	2,716	2,943
Net operating loss and other carryforwards	(5,619)	(6,484)
Other – net	1,466	563
Subtotal	54,521	53,927
Deferred tax assets valuation allowance	4,338	4,656
Net deferred tax liabilities	58,859	58,583
Noncurrent deferred tax liabilities	58,939	58,666
Less: Noncurrent deferred tax assets	$ (80)	$ (83)