Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) $ in Millions	Mar. 31, 2021 USD ($) shares	Mar. 31, 2021 € / shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2020 € / shares
Statement Of Financial Position [Abstract]
Trade and other receivables, allowances for doubtful accounts and sales returns | $	$ 22		$ 23
Common stock, par value | € / shares		€ 0.07		€ 0.07
Common stock, shares authorized	1,185,800,000		1,185,800,000
Common stock, shares issued	358,530,521		357,678,263
Common stock, shares outstanding	358,497,131		357,644,935