Additional Information (Schedule of Valuation and Qualifying Accounts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Discounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 0	$ 0	$ 0
Charged to costs and expenses	607	647	633
Deductions	(607)	(647)	(633)
Balance at end of year	0	0	0
Returned Goods [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	50	40	32
Charged to costs and expenses	97	124	98
Deductions	(106)	(114)	(90)
Balance at end of year	$ 41	$ 50	$ 40