Revenue Recognition (Deferred Contract Acquisition and Fulfillment Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Deferred Acquisition Costs
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	$ 6,806	$ 5,798
Deferred cost amortization	2,935	2,965
Deferred Acquisition Costs | Prepaid and other current assets
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	2,893	2,551
Deferred Acquisition Costs | Other Assets
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	3,913	3,247
Deferred Acquisition Costs | Video Business Unit
Capitalized Contract Cost, Net [Abstract]
Deferred cost amortization		409
Deferred Fulfillment Costs
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	6,687	6,748
Deferred cost amortization	2,688	4,014
Deferred Fulfillment Costs | Prepaid and other current assets
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	2,481	2,600
Deferred Fulfillment Costs | Other Assets
Capitalized Contract Cost, Net [Abstract]
Total deferred costs	$ 4,206	4,148
Deferred Fulfillment Costs | Video Business Unit
Capitalized Contract Cost, Net [Abstract]
Deferred cost amortization		$ 1,162