STOCKHOLDERS' EQUITY - Repurchases of Common Stock (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019	Dec. 31, 2019
Shareholders Equity [Line Items]
Common stock repurchased (in shares)				1.4
Reduction to stockholders' equity due to repurchases of common stock		$ 277,000,000	$ 216,000,000	$ 1,041,000,000	$ 500,000,000
Cash paid for repurchases of common stock				1,015,000,000	500,000,000
Total remaining authorization for future common share repurchases		$ 1,800,000,000		$ 1,800,000,000
Par value of shares repurchased (in dollars per share)		$ 1		$ 1		$ 1
Additional paid-in capital after reduction		$ 0		$ 0		$ 0
Reduction to retained earnings
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock		108,000,000	$ 41,000,000	841,000,000	$ 278,000,000
Rule 10b-1
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock				541,000,000
Accelerated Share Repurchase Agreement
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock				1,000,000.0
Accelerate Share Repurchase (ASR) authorized amount		$ 500,000,000		500,000,000
Cash paid for repurchases of common stock	$ 0			$ 500,000,000
Shares acquired (in shares)	0.4
Shares acquired, average cost per share (in dollars per share)	$ 347.16