STOCKHOLDERS' EQUITY - Repurchases of Common Stock (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
	Apr. 20, 2020	Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019
Shareholders Equity [Line Items]
Common stock repurchased (in shares)		0.7
Reduction to stockholders' equity due to repurchases of common stock		$ 764.0	$ 284.0
Cash paid for repurchases of common stock		756.0	281.0
Total remaining authorization for future common share repurchases		$ 2,000.0
Par value of shares repurchased (in dollars per share)		$ 1		$ 1
Additional paid-in capital after reduction		$ 0.0		$ 0.0
Reduction to retained earnings
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock		733.0	$ 237.0
Rule 10b-1
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock		264.0
Accelerated Share Repurchase Agreement
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock		1.0
Accelerate Share Repurchase (ASR) authorized amount		500.0
Cash paid for repurchases of common stock		$ 500.0
Subsequent Event | Accelerated Share Repurchase Agreement
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock	$ 0.5