CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY - USD ($) $ in Millions	Total	COMMON STOCK	RETAINED EARNINGS (ACCUMULATED DEFICIT)
Balance at beginning of period at Dec. 31, 2017		$ 10,050	$ (713)
Increase (Decrease) in Stockholder's Equity
Net income	$ 807		807
Dividends declared to Qwest Services Corporation	(575)		(575)
Balance at end of period at Jun. 30, 2018	9,697	10,050	(353)
Balance at beginning of period at Mar. 31, 2018		10,050	(505)
Increase (Decrease) in Stockholder's Equity
Net income	427		427
Dividends declared to Qwest Services Corporation			(275)
Balance at end of period at Jun. 30, 2018	9,697	10,050	(353)
Balance at beginning of period at Dec. 31, 2018	9,868	10,050	(182)
Increase (Decrease) in Stockholder's Equity
Net income	964		964
Dividends declared to Qwest Services Corporation	(700)		(700)
Balance at end of period at Jun. 30, 2019	10,132	10,050	82
Balance at beginning of period at Mar. 31, 2019		10,050	(45)
Increase (Decrease) in Stockholder's Equity
Net income	477		477
Dividends declared to Qwest Services Corporation			(350)
Balance at end of period at Jun. 30, 2019	$ 10,132	$ 10,050	$ 82