Sales of Receivables - Sales Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019	Dec. 31, 2019
Receivables [Abstract]
Accounts receivable sales proceeds	$ 88	$ 3	$ 156	$ 27
Long-term receivables sales proceeds	29	55	70	76
Total proceeds from receivable sales	117	$ 58	226	$ 103
Servicing obligations for long-term receivables	990		990		$ 984
Long-term financing	$ 88		$ 88		$ 78